1. Through our decentralized government, we create a system to checkmate projects and reduce the predators to a large extent.
I think you refer to the amount of scammers and other shady services. But I struggle to understand how you plan to "checkmate" them with a "decentralized government"? Bitcoin's blockchain cannot be governed this way, so I think you refer to the Bitcoin community. And yes, there are mechanisms in place to combat scams, for example here in Bitcointalk.
The basic problem is - greed. If they can hope for a decent profit supporting a shady Bitcoin service, ICO or altcoin, many people will do it.
2. Some project developers should maybe consider creating a truly non-technical social hub whereby people can come and associate, benefit from the rewarding nature of the blockchain, and more importantly find relevant information on everything blockchain. Am currently working on one though.
I agree. In theory, we already have a "non-technical social hub" with Bitcointalk. Most users here have no technical background. But it has some usability flaws - for example, it's almost unusable on mobile without heavy tweaking - and the software is terribly outdated. Reddit, and to some extent also Steemit have become alternative hubs, but both have their own flaws, as have Facebook/WhatsApp/Telegram groups (no one has achieved to be a "hub").
3. People should basically see the blockchain in two primary forms as I highlighted in the second and third paragraph above, as a transfer of value and as a place where they can see other hosted projects and choose for themselves where to invest their earnings through adequate research and understanding of those projects, and this is only made possible if my number two solution above existed.
To be able to "choose", people must be well informed. Here we have an additional challenge. Most services that try to "rank" or "review" cryptocurrencies are either terribly biased, very badly structured (like the "Project Development" forum here at Bitcointalk) or only based on very basic indicators like the flawed "market cap".
4. It is high time projects start thinking of bringing mainstream's daily activities to the blockchain, by creating more securities on the blockchain than mere tokens. Start-up projects and companies should be educated enough to see the blockchain as a perfect spot for the sales of company shares, that's where the new blockchain revolution should focus on.
I think the problem here are legal challenges. And there is a factor which probably makes this currently unviable for most companies: Volatility of Bitcoin and cryptocurrencies in general. In 2017 the $20K high of the Bitcoin price was almost 30 times(!) higher than the $730 low. Most altcoins are much more volatile. How could you really ensure investors can measure a price of a share if the main market is a volatile cryptocurrency?
Volatility is a hen-and-egg problem: if there were more companies that used Bitcoin and blockchains to use as a base technology for their shares, there was some "real value" attached to the blockchains and thus the volatility could gradually sink. So it would be desirable more companies took the risk, maybe only basing a small part of their shares on blockchain assets.
Well, and there are two more problems you didn't mention:
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Usability - there are already protocols and tools that make payments much easier (Payment Protocol etc.) but they are not universally used.
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Scalability - the transaction density problem has not been solved. Projects which have no problem with some centralization, like EOS, can achieve similar throughputs than totally centralized solutions. But Bitcoin's innovation was to decentralize money, not to re-centralize it with another paradigm. But perhaps this problem is close to be solved, as LN is evolving and I heard also that this year there was a theoretical breakthrough with
sidechains.
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energy waste problem. The hopes here are 1) a breakthrough in alternative consensus algorithms like PoS or PoC or 2) a cheap mining infrastructure based on renewable energies.