No more interaction with blocked users

Hi,

I have a problem with a user on a friends server. So as a human being, I blocked him, muted him on vocals, did everything I could to not interact with him anymore. I said to myself, "Perfect, he can't interact with me anymore". BUT, I can still see him on the list on the right (the one where the usernames are displayed). That shouldn't be a problem, except that the guy is pretty creative, now he's insulting me with his username. Clever, isn't it? So that's why I'm here, would it be possible to TOTALLY block a user, no more messages visible from the user, no more Dm from the user and his username hidden (display something like "BLOCKED USER" same for the status). I don't think it could hurt anyone.
That's it, I'm done complaining.
I hope this can be added.Bye