they write the same shit from two different accounts in a different manner using text spinners or what ever
Yes, a simple GPT-like program is enough. But not to generate the content: that's what Newbies do. It can be used to alter it, and change the style, just a little bit, here and there.
or they are separating the accounts into subjects they cover and subjects they do not
This is possible, but hard to do in practice. And it is more natural to share the same interests with your friend/brother/whatever, than pretend, that "I never heard of UserName". And also, sometimes you want to reply as UserNameOne, and sometimes as UserNameTwo. It is easier to share similar topics, if you want to do that, because then, you can reply to yourself, and bump the topic, while staying "within the rules".
If my Bitcoin Talk earnings were significant for the country I live in, I could simply write a post and hand out my keyboard to some body I live with so they could make changes here and there to make it seem like they were writing it and not me.
It is easier to find some online account with a low rank, and send a PM, with the content to be posted. There are more than enough people willing to do so. They can keep their merits, because content creators, which are smart enough, are usually Legendary (or would have that rank, if all of their posts would be submitted from the same account). And after being Legendary, what is the point of using the same account? It is more profitable to boost some alt-accounts, and it is better for privacy. And note that having alt-accounts is allowed.
Would the manager notice?
Of course not. He would pick two or three posts, each written by the same person, but posted by different alt-accounts, and will submit that in his merit source application.
Is it shit posting and spam if some body helps out two different people through two replies of the same essence?
No, because if it would be treated like that, then every time when somebody would ask a question, that already was answered by someone else, people would be forced to link into that, and stop elaborating about the details, or adding anything new.
It is spam and shit posting if some body is writing nonsense twice or two replies containing the same message from the same account, but what makes it different in the situation presented above?
For that reason, having alt-accounts is not punished. First, it is good for privacy. Second, it lowers your rank, and your merit counter, because it is splitted into N different accounts, instead of being joined into one account. And third, it is hard to enforce, if you are talking with a smart would-be-Legendary, that is splitted between five Hero-Members, a bunch of Newbies, and me, who posted it. And it is even harder to notice, if all accounts use Tor (and bridges or public WiFis, to create an account for the first time).
Also, for the same reason, sending merits to yourself is not punished (because yes, if you want to build a trustworthy alt-account, then you also have to do things like that, and "waste" some merits in the process).
Is it spam if I tell OP1 how safe it is to store Bitcoin in a Cold Storage from Account A and 5 minutes later I tell OP2 the same thing written differently from Account B?
It depends on the content. If you would normally post the first part from your first account, and you would edit your post, by appending the content of the second post, to a single one, then the publicly shared content would be the same.
Which means, this:
First post...
Edit: Second post...
Is equivalent to that:
First post...
Second post...
But sometimes you want the former, and sometimes the latter. And you need some alt-accounts, to avoid double-posting. Also, those accounts are useful, if you want to disagree with yourself, because some people cannot understand, that it is smart to learn from your past mistakes.
In theory this is helpful and not bad information but tell me which Manager would pick a participant who writes the same message twice every now and then.
I can give you the name of that manager, and maybe even link to his merit source application, where he picked some of my alt-accounts in his 10 posts, but I wonder, if I should do that publicly. By the way, he is not that bad person, to deserve such fate. It is rather a confirmation, that I separated my accounts properly.
There is a way to avoid pretty much any rule if some body wants to.
Of course. The smarter you are, the more power you can gain.
I can bet however that we had many alts in the past in some of the most well paid Campaigns on our Forum.
You are talking with one of them right now. But obviously, he is using some alt, to post it, and some Newbie agreed to copy-paste this content, without even reading it, and is now waiting for some merits. I think he could be disappointed, but there are many people, willing to post my content.
If we have decentralized money, how hard would it be to have a decentralized forum?
It is not that hard. Some moderators will be probably unhappy about this offtopic, in a topic about mixers. But I will reply anyway: if you want decentralized forum, then you can just create Merged Mining sidechain, with merits, expressed as coins, with accounts, expressed as public keys, and with the forum history, that would be possible to download by each "forum full node".
You can do that, if you want to. But note, that it will bring you more problems, than you can expect. Some people tried "decentralized cloud storage" or "decentralized code repository". Even "decentralized chess" or "decentralized poker" was here and there. But those solutions has their drawbacks, and by having a simple, centralized forum, you can avoid some of them. As long, as your "experiment" will not be pushed on-chain, as Ordinals are, it is fine, and I can even join your project. Good luck.
if it needs administration there's liability and real people can't really be decentralized
It doesn't need administration. But it always needs moderation. It can be done by each participant separately, then you have something like signet, where each node can decide, which post is worth reading or not, by signing blocks (to prevent spam), and by giving merits (coins) to encourage good posters, and to ban bad posters, on a protocol level.
But of course, if you want to make it popular, you will also need browser-like functionality. Which means, some clearnet page, that will act like a SPV node, is highly recommended. And in that specific place, you can have any administration you need. But in a pure, decentralized world, it is optional.
If a platform needs intelligence for moderation, how do you remove liability so authorities can't just shut it down with targeted arrests?
First, you use Tor. Second, there is no mod or admin, that acts globally. Everyone has an ability to pick posts, which are worth sharing, and then, people naturally follow someone, who provides a good content. Which means, each node will act as a peer-moderator, and you simply connect to the one, which you want to read content from.
But of course, the final outcome of such model, is not "better" or "worse", than what we have today. It is just different. And, similar to Bitcoin, if you want to increase your privacy, then you reserve some resources, like bandwidth, to handle the traffic, that you are not interested in, but you process it anyway, and share with other nodes. Or you can use SPV node, but then, some full nodes are needed, to keep that network alive.
Money doesn't seem to be the issue here.
True.
The problem is lack of new ideas and lack of motivated people to execute them.
The second one is the problem. The first one is easy, for example the model I described, was tested to some extent. But if you join any fully-decentralized network, then you should know, what are some drawbacks. For example, if you use Tor, you should know, what is the dark side of being anonymous, and how some people can misuse it. And you can read, what happened with Omegle, where it was possible to talk with strangers. The human factor is the biggest issue here.
New Year in the middle of winter, it never made sense to me
Because originally, the first month was March, when Spring begins. And then, having February as the last month, with less days, was not an issue. But it was moved two months back, for historical reasons.
Even more than that: there were calendars, where each month had 30 days, and there was "5 days tail", where people believed, that it is some kind of "Friday 13th", but longer.
how are you going to download it to get started? Centralized on Github?
No, you download posts, like every other transaction. But yes, having "blockchain for cloud storage" is not that cheap, as having "blockchain for payments".
, not sure if Romania is friendly with privacy, to be more specify a tumbler. 
