Spam Bot Attack - Please Help!
 

Hey, please take a look at this site: http://www.stopforumspam.com/

It seems the same pattern has infected my forum, sometimes I see same email addresses, same IPs, and same usernames with the bots listed in stopforumspam.com. I have tried to enable email verification, change image verification to recaptcha, and all things that I've been think of, yet these spam bots still manage to pass on everything.

Can someone help me what to do?