Even though I don't believe I have anything to worry about, I'd still prefer to add more signers to the multi-sig so I don't have full control anymore. This would make it safer for everyone, I really do not like the fact that users have to trust me. For now this is the only option though, and I will not take any steps in this direction unless I am 100% sure it's done in a safe way. The community would also have to agree with the plan before I set it in motion
The way you are trying to involve individuals from the community and keep talking about community in the main operations with the multi signature addresses and things, I wonder what the three letter agency will feel about it when they will target your project. If you become bigger then today or tomorrow they will come after you and the people with you working in the managerial level holding the keys.
If they get the false sense of understanding that the mixer is running by bitcointalk community then immediately they will come after bitcointalk and destroy it.
I'd suggest when selecting trusted members of the community to act as additional signers, those members reside in regions that:
a) aren't openly hostile to Bitcoin,
b) aren't aligned with US/EU interests and
c) aren't all in the same place
That alone will make it more resilient to takedown.