I get the point, but some aspects are overlooked.
Yes, most reviews from newgrounds users are useless and violate the review rules, and yes, a lot of these users don't use flash and that limits their ability to make their criticism constructive. However, these people who aren't flash authors still watch flash, and know what they find entertaining, and what they don't find entertaining. A flash should appease a vast audience, even to those not familiar with flash. What these reviewers who don't do flash can offer in their reviews is tell the flash author what he can do keep viewers entertained. That being stated, this particular flash could use some more movement, instead of just a repetetive animation.