I would like to have "Bans" from the game.

Like if a certain username come into your room or multiple rooms you're in and you have to ban/mute them in several rooms they could get a ban from the entire game for a certain time, if they try to enter a room as an anon or registered account they could get a big blue warning sign that says something like this:

"Dear _____, you have been banned/kicked from the game for 1 hour. Please check back another time."