There's a big red link at the top of the For Sale forum that says "Must read before posting in this forum"

http://ball-pythons.net/forums/annou....php?f=69&a=11

And item #4 explains:
4. Comments are NOT allowed on ad-threads posted by other members. This artificially bumps the ad back to the top and knocks other, newer ads toward the bottom. ALL correspondence about the ad must take place via PMs or e-mail.