The software does all the work.. I just had to configure it. Most spammers dont even make it past registration. Upom registering, I check their IP against 4 known spammer databases, I check their username against a known spammer database and check their email the same way. I also block certain countries who would not come here other than to spam. And lastly, I have a timer on the registration page that times how quickly the registration is completed. Unless youre using an automated method of registration, theres no way you could complete it as fast as these guys do. I have one other thing on the registration page Im not going to divulge but it trips up the automatic registerers pretty much every time.