To ban or not to ban...

[Lantry]

I think that if it looks like they are cheating on a public server, but the proof isn't completely there, the private demos can be subpoenaed (if you will). If you are absolutely certain it is the same client, I don't see why you shouldn't. Of course, I don't know all the details about how exactly you got those demos, or any of the other details besides what I read here.