Well, a few tips I'd say are:
1. Maybe the mods which add posts to the moderation queue if they have key words in, and add things that spammers like to advertise to this list?
2. Not posting links until about five posts.
3. Pre moderate users for their first five posts.
4. Switch to a non CAPTCHA form of verification like question and answer or recaptcha (this and 3 has never got me any spammers).
|