Why would the "lord" write a note in the general chat about who he's going to block, when he can just discuss it with his "homosexual" friends? Oh, these mafia schemes.
Host. My first impression is that the authors are either from Host or Thory. Revan? I don't know, I don't really believe it. Lock and Amko are possible, but I don't think so. You have an alibi (too bad). It seems like it's Thory, it looks very much like it.