I already have a bot running that nukes all his accounts that aren't
proxybanned, so the spam should stop (until he switches username, as I don't check the
patrol page yet, but it will do so in the next update). My bots nukes his new accounts within 2 minutes, usually within 1.
Then if you say he is using TOR and multiple IP why there isn't some kind of filter for spam threads? At the end he posts almost the same thing over and over and if there is a filter it could be possible to slow he down a bit don't you think?
Spam filters would slow down the forum and very hard to keep up with. People will always find ways to bypass them or trick them. So you are wasting resources on a losing battle.