Re: How to control spam registration?
I’ve no doubt they’ll return, but I haven’t had a spam signup for a fair while. The odd one creeps in, but you can’t stop a determined ‘real’ person. But I haven’t been subject to the continuous signups I used to get when I first started my site.
The steps I’ve taken are:
Rename (not remove) wp-signup.php
Use custom bp-register slug
Removed “powered by” type text in the footer and other obviously WP / BP phrases
Installed SI Captcha
Employed the .htaccess rules explained here: http://wpmututorials.com/how-to/spam-blogs-and-buddypress/
Nothing’s perfect against spam, but certainly for me, these things have helped.