Actually, the real reason why you shouldn't post it on Newgrounds is the fact that most of its viewers and members are big, fat, perverted losers who don't know a quality amateur Flash when they look at it!!
Therefore, your movie will likely be 'Blammed' if it gets a score lower than 1.50/5.00!!!
('Blam' is a Newgrounds term for automatically terminating any form of crappy Flash files, because Newgrounds only accepts high quality Flash! What can you do? Newgrounds is probably the most popular Flash archive on the internet!)
I am a pure Super Mario lover!!
...and in no point in the future will he ever be abandonded by me!
I will even drawn the best Super Mario comics ever to exist!!