I have no proof other then they both were the sole active admins of FFC. I don't care who has pleasant conversations with those 2. I don't trust either of them and never will. As long as they are a member of crypto-city, I won't be joining. Others can do whatever they want.
Hopefully, you won't apply that logic everywhere. Just because certain people people you don't agree with are members of a site shouldn't prevent you from making use of a site, Crypto-city, Facebook, btc-talk etc....