If this forum supported a CAPTCHA before posting comments, it would slow the spam down considerably. Alternatively, if a post received a minimum of 3 downvotes (-3 score or lower), automatically hide the post, and flag for moderator review.
Right now there are three spammers actively polluting the forum with posts at almost precisely 2-minute intervals: /user/drcreater (24 posts, 24 downvotes), /user/Fiona (18 posts, 18 downvotes) and /user/Hunnie (10 posts, 10 downvotes), all with accounts only 2 hours old.
A CAPTCHA would slow them down, or getting them pushed into a moderator queue after 'n' number of simultaneous downvotes.
Thoughts?