Holy hell the forum got absolutely RUINED today. I think they DO have a spam filter because they've fixed this before. But these new accounts come looking almost like legitimate users, they're certainly more legit-looking than the last time we were regularly flooded.
All I can do as a moderator is ban the IP address and delete the spam as and when I see it. I too noticed the spam has been really bad recently; I will pass this on to Andy and see if changing the security settings on registration will improve the situation.
Also a quick thank you to everyone who reports the spam -- your help is massively appreciated!
We were originally using Google's reCaptcha, but it looks like the spammers found their way around that. I installed a new plugin that hopefully stops this, but Andy may still have to tweak the settings. I had to update the board software for that, so please have a look if anything is broken, now.