With the mechanism I'm proposing, you get to keep your identity hidden as long as you are a good citizen of the platform you participate. If you can't stand for the things you say, and they are problematic for the platform you simply don't say them then. In the current system it's exactly the same situation, if your stuff are not O.K. they get removed which is effectively the same as you not saying it.

I don't know why people feel entitled to say something without facing the consequences of it. If you don't believe in it enough to defend your position and put forward your reputation, you don't need to say it.

Why do you need to deceive people? Let's say, you are a racist and feel very strongly to say something about your opinions. Say it and win the argument and improve your life or say it and lose the argument and people can choose not to be associated with you.

That's a fair situation, what's not fair is to annoy people or maybe even harm them from another persona and then pretend that you are something else.