Agreed, It would be a good idea as Paperbag said, but also a trick question installed in the registration as well. Such as Whats "10 - 3". Just incase for people who bypass the captchas
I've been checking the Memberlist, I haven't seen many bots or any join in the past few days? Can you link me to some profiles you may think are bots and I'll check. The Stopforumspam plug in has stopped hundreds of legitimate people logging in and or registering which didn't actually benefit us one bit.