Re: Isn't it ALL a BuddyPress issue?
Well… with regards to SPAM… I’m not certain… but I suspect that’s actually BuddyPress-related.
This is a fact. I “bugged” my registration pages and spent the weekend watching spammers in their natural habitat. My findings confirm that, if you do nothing special to protect your site, BuddyPress is absolutely, definitely associated with an additional spam burden over and above what you get with WP and WPMU.
It’s another great example of a problem that is not WP, it’s not BP – it’s a “synthesis” problem. Though the solution is definitely a BP one (not ready to report it yet, for fear of jinxing my progress).