Since mixers will be soon be rejected on the forum due to the heat they are bringing from the government, do you think that the reputation of the forum and the rejection of these mixers from the forum will be enough to force them to change the way they mix their coins?
The answer is yes, they can redress with some certain transactions, some of the mixing companies do some certain things knowingly and also some transact unknowingly too, but when government pressure come in they don't have a cogent reason to defend themselves, so this pressure of law enforcement agencies can make some of the mixing companies to be extremely careful if their intension is to participate in money laundering.
What a forum is avoiding is the reputation of bitcointalk not a reputation of any mixer, mixers is someone business or a joint business anybody can use mixer if you want really make use of mixers, the instructions is nobody to promote mixers in this platform, if you want promote you can look for elsewhere to promote them, and secondly not all the mixing companies that government is after, they are after the ones they detected that they are into money laundering, look at mixin, they are also a branch of mixers but government is not after them because they have no find any faults of money laundering with them.