this forum is more and more spammed...
My anti spam measure at sign in isn't enought to stop 'human' spammer...
I banned almost any IP from Pakistan/India/SriLanka but it's not enought...
There are some mods which block spammers from their ip and/or their email...but for phpBB 3.x

so 3 solutions (from the easiest to the hardest) :
1/ I keep it like this and delete user/posts one by one
2/ I dev a mod myself (could be harder to hack than "known" mods) using API like StopForumSpam's one
3/ I move this forum to the latest version
I still don't know what to do... but if you see some weird behaviors on this forum on the coming weeks, don't be surprised : I'm perhaps updating it
Again, sorry for the spams, I'm working on this problem.