Add some commands to Multiplayer chat such as: /h + textHighlights everything that comes after it, can be used in the middle of text. /r + textResets the color back to black, should be used after highlighting something. /dSelf-destruct your spaceship /tmReplaces the command with ™ /b + callsignBlocks someone, you will never see text from them, can be managed in contacts
Blocking may be completely different
When you block, the player would be able to play freely but his text will not be visible and at this point, this can be used by guests not host, you can block the host too.
While kicking will just kick him out, and only host can do that.
Rather than a command just for silencing a single player in game, how about it just hides all Speech Bubbles instead? (Chat still shows up in the chatlog)