Hey everyone,
Lately
my forum has been intentionally attacked by spam bots who advertise bad stuff and I do not know how to stop them. It's been two weeks since the first strike and I've done everything I could - from tweaking the captchas to closing the whole registration. Even thought of banning their ISP but apparently it is hard and people refuse to guide me on that one. It is driving me mad.
If it helps, the bots strike as a group of (usually) ten users, all named the same except for the numbers at the end. For instance: nocturnal111 nocturnal123 nocturnal384, etc.
If anyone knows how to defend my forums please reply and I'll be grateful.
Thanks in advance.