It really bothers me that the blacklist does not mute quick chat from the blacklisted player. So much of bad behavior and harassment in CC comes from quick chat spam. It doesn't make sense that blacklisting and mute work on normal chat functions but not quick chat.

Ideally the black list should prevent you from being matched in the same party with a black listed player to begin with, but I get the feeling it'd take 2 hours to queue if they put that feature in.