Oleg, you are correct. In low populated arenas the ,report is not as effective. I have been manually scanning the logs based on the .reports to see what the report was all about and manually issuing the restriction if the violation warrants it.
And yes, screenshots/films are always welcome. We do endeavor to keep the arenas a *fun* place to be and be rid of the obnoxious.
Pongo, you are also correct. Squelches are handled on the server. Keeping a perma-list on the server would not be practical, as you mentioned. Moving it to the client gets us back to the possibility of a newbie being ignored.
How often does someone request a game ID that is already taken? I get, at least, one phone call or email a day about it. I would call it, quite often.