A captcha to create an account is ok, but having to constantly do that every time you want to create a thread is not a good idea.
Anyway, it might help to just block the IP addresses of public proxys, spambots like to use these to spread their crap. But I dunno, let Larian decide what is best and most effective.
Yeah, I'd certainly go along with that. The Larian chaps are back soon, I understand, so hopefully they'll give the matter some consideration.