With the Authorized for URLs MOD installed, I am turning back guest posting to most places that originally allowed it. BOTS should be stopped dead cold in their tracks. Besides the inability to posts links, non-authorized parties will be unable to post image files either, since the board treats them like a link.
No registered user should have a problem posting, and of course, guests can post as long as they do not attempt to include a link or image. If there is any trouble with posting, please let me know by replying to this topic, thank you!