Due to the fact that -blacklist and -prefer were implemented in the beginnings of the game, the majority of games nowadays include a lot of random role groups, not to mention that the number of roles in the game have increased quite a bit;
I suggest that we allow up to 3x -blacklist group (Town Random, Neutral Evil, Mafia Random etc.) as well as up to 3 specific roles. Also allow the same option for -prefer.
It will make it easy to outlaw certain role types (I can't stand doctor or escort, so instead of taking up 2x -blacklist spots I can cover both with Town Protective), but not game-breaking so long as it's limited to up to 3 groups in addition to 3 roles.
Plus it'd be a big boost in hunting down those last few elusive roles that you might need to win with between 10 and 20k for all roles or other achievements. =)
Thanks Much