You may have a point there; but believe it or not, comments on Newgrounds have had a big purpose change since the progression of this website. It is intended for good and helpful reviews with serious criticism, But haven't you noticed that after the redesign, we've come a little closer to what Youtube comments are all about: telling a good joke and not being serious?
These comments give us a laugh after what we just saw of a flash movie or a game and give the situation irony, which most of us, including me, seem to enjoy. If the comment were to be serious and thoughtful, no one except the flash maker would show interest. The whole "People find this review helpful" has gotten to all our heads and is convincing us that if one person were to upvote it, that would mean that the meaningless comment you just wrote would be beneficial; and maybe it is not by criticism, but by entertainment.
Nowadays, the whole comment system isn't really a big deal. People don't really pay attention much (except for popular artists reviews) and tend to never have to think of them again. However, whatever crap we write in our comments is simply stuff we would like to say, and possibly have someone agree with us and click on us and fan us. It doesn't matter what comments we write when it comes to gain. What matters is we wrote a comment. That was our opinion. Cool. Ok.
So know this. Even if someone did say something already and you don't feel like repeating it, wouldn't that mean that people have a similar opinion as you do? That would be nice.
Thanks for reading. :P
NMLD
Totally true, what a breath of fresh air.