No way.  If I cared about being popular I'd make at least a token effort to be polite or censor myself a bit when I post.  
I post here for a few reasons.  One of which is that any time you basically have an open forum of thousands of people it's a great time to ask questions or solicit opinions.  Hell, I had a question about some music from Southpark and someone here figured out what it was within an hour, it was some insanely obscure generic track from a software program.  
I enjoy arguing, and honestly it's pretty easy to win arguments here, because most people are either A) 12 or B) have the intelligence of a 12 year old.
I also enjoy the anonyminity to rant about stuff.  In normal society you can't rant and rave about girl/guy double standards, stupid people, tiny continuity errors in movies, or a bunch of other stuff.  Here, you can, and if people don't like it, what the hell do I care?