> I was having this problem for a while... then I added a confirmation block > to my guestbook - so that any post had to be confirmed. > > Boom - spam stopped (I've never even gotten confirmation notices that they > tried again).
I did basically the same thing. I hacked PHPBB a little to throw an error if a certain non-standard form field didn't have a specific value, and my forum spam has stopped completely. Their bots are still creating accounts, but they can't post, so there's no real damage done. St-
