After another cafe griefed on my server, I've decided to contact Steam support about the issue of unbannable cafe abuser.
They wrote back !
The guy told me they are looking at the logs of all the steamIDS I,ve provided him, so they might take actions.
My banlist was FULL of Cafe steamIDs. If they trace all the steamids to the same cafe account, they might do something about it.
OATZ: IT WILL BE OVER SOON.