Something to control the quotes would be good... on my phpbb forums (Nuke based) there is a mod that collapses the quotes and provides an expand button....

Someone posts a 300 line post with a guide, someone hits Quote and says "Nice work"... we don't need the extra 300 lines and it kills readability.

Something to control or autoscale image links so folks can't post 2560x1200 screenshots and totally bork the format of the site up .