Re: How to control spam registration?
@Cyndy: The two posts above you give alternatives to using captcha. It’s not the “only known solution”. SPAMers use bots. Bots look for known text and urls… like “Powered by BuddyPress” or http://www.mysite.com/register or whatever. Changing those things can help a lot. And invisible defender helps too. All without captcha. Which I think everyone will agree… sucks.