Indeed, someone unknowingly posted some malware somehow. Also, there was a lot of nudity, which is actually against the rules here even if the mods were letting it ride for a while.
Sounds like a new Ass Appreciation Thread that correctly follows the guide lines needs to be established!
Ya it got restarted a little while back: http://forum.grasscity.com/pandoras-box/834225-ass-appreciation-thread.html