[fumar]

It does look like most rooms have several rules. As I remember, it became a norm. Mostly as a reaction from random users getting on the decks and playing absurd stuff to kill the room's vibe. We could call them trolls.

Edit: I clicked on the spreadsheet. Having a music black list is pretty extreme. I thought you were referring to room rules; like, only playing five songs then stepping down or having a list of who is up next.

[r00fus]

Re: Trolls - on a meta/tangential note it does seem like "troll management" (aka moderation) could alternatively be called governance - it's essentially what keeps libertarian ideas in the fantasy realm - anything involving large numbers of people undoubtedly requires extensive rules in order to keep things stable (whether they're explicit rules as in managed systems, or implicit rules where avoidance of external authorities is what keeps people in line - ie, torrent culture).