Since upgrading to WordPress MU 2.9.2 and Buddypress 22.214.171.124, every single day I am getting fake users signing up to my site.
I use WPMU super captcha http://goldsborowebdevelopment.com/product/super-captcha/
Bad Behaviour http://www.bad-behavior.ioerror.us/
WPMU Block Spam by Math http://www.jamespegram.com/wpmu-block-spam-by-math/
I am getting slightly annoyed. Before it would be the odd one or two once in a blue moon, but now, every day. What else can I do?