theymos asked this for obvious reasons. What I'm curious about is whether any law enforcement was there behind the decision.
This is purely my speculation, but I think its more about being careful in case government knocks on the door rather than already getting some warning because if there was something like that it would be logical to ban mixer signature campaigns alltogether and not just restrict it to forum staff.
What about the people advertising the mixer? Would it be better to quit advertising mixer services? Will it be an issue for bitcointalk forum in general? Would it be better to quit advertising mixer services? I was thinking about this ever since I have seen OmegaStarScream's quoted post. Is it time to think about this?
I've been asking myself the same thing as well and I am not sure I reached the conclusion yet.