The explanation lies here: <a href="http://www.newgrounds.com/bbs/topic/1199922/13">http://www.newgrounds.com/bbs/topic/1 199922/13</a>
The main reason why your flashes were reported/deleted was because they either contained real pornography or they were simply Unsuitable for Newgrounds (as in the case of your Columbine Flash).
Popuko-san
Newgrounds has been incredibly fascist lately. First they delete my Muhammad flash which was set to win Turd of the Week, instead the award going to some stupid, unfunny movie about a raptor (hurr hur raptor rapture teh funneez) and now they delete many of the Cyberen Sillies? What the fuck is wrong with these mods? Is this some kind of conspiracy?