I don't know...

One guy says it OK to talk about them but don't post links.

Another guy says don't talk about mixers at all but has a like to a wallet with a built in mixer in his avi and signature.

The next guy is talking through google translate? But he seems to be pretty sure I'll be banned for even thinking about mixers.

Its all very confusing especially since the purpose of bitcoin is private, peer to peer payments outside of government scrutiny.