Being unable to see your posts and comments wouldn't do much as the user could just sign out of their account or use a private window and be able to see it again.
That's the level of protection I am advocating for. I know people can views links in a new private account. They can't reply that way.
They can make a separate account but I can block that one too if it acts up.
I'm suggesting a tiny speed bump to keep interactions good faith. Yes, dedicated trolls can do all sorts of things. I am advocating making it slightly inconvenient for less dedicated trolls to pester people.