Well, too late
And that's the thing with privacy: once it's gone, you can't get it back.
Not sure; for some people and some privacy goals, it may be 'too late' to follow this advice, others are doing at least some of the steps outlined here, already.
While the second statement is true, it is important to note that data 'ages'. What I mean by that: your primary email address may change, your physical location may change, the list goes on. A record of your personal information from 2019 may be mostly worthless today. The information may all be wrong by now.
Privacy is not my ultimate priority but who really needs should practice all the points mentioned by OP to achieve it.
I noticed that you are advertising for Roobet; a mostly unregulated crypto casino registered in Curacao. It may be desirable for your real identity not to be linked to Roobet, due to obvious reasons.
TOR is terribly inconvenient, I'd rather continue to use Opera. Most users do not need it at all, as well as its use
I disagree; you should try it out. In my experience, websites did load pretty slowly a few years back. But nowadays, it has gotten a lot better, especially if the website doesn't need JavaScript and doesn't use lots of graphics (like Bitcointalk).
this option is more suitable for those who are completely turned on privacy or those who have something to hide.
Everyone has something to hide. For example their affiliation with crypto casinos. Others earn money online without declaring it to the taxman. And even others post their opinions freely on here, meanwhile those opinions aren't legal to post in the country they're living in. Lots of reasons, scenarios and risk profiles. In general, you probably want to better be safe than sorry.
There is a strong opinion that privacy is a myth, and if really want to, will still find you.
I'm not arguing that my recommendations fully protect you if you are a highly sought-after criminal, but it's a 'bare minimum' that can go a long way.
I don't understand how this relates to privacy. How does this relate to my privacy? It's more of a security issue.
If you hide your IP and use the privacy measures mentioned, you cannot restore your password by e.g. sending a message from the IP you last logged in with. I think that's what the warning in the Bitcointalk account settings hints at, so I wanted to present an alternative in case that ever happens to someone.