If someone thinks mixers exist to launder money for scammers he's righteous to red tag people wearing their signatures.
If you don't see a difference between something that exists with the sole purpose of scamming (X10/investbox) and something that may be used by scammers (mixing) then there is no limit to absurdity you can push this argument to.
I actually can't believe that we are still having this discussion. It's not like you could argue that there's no mens rea or anything..