I think I understand your opinion on some of the cliques here, but I don't think it's right to generalize all of them because of a few (or many, or whatever) cliques have tainted your taste for them.
I strongly agree with you: There are some cliques in the community that the way they act is quite irritating. I also would say though that there are some incredibly friendly cliques. Not all of them are bad. I share your opinion in that at least one group of people like to think they are superior to you and above you, for whatever reason. Their reason need not be justified, but because they hold some sort of popularity with a few others, they feel like they are always in the correct. This doesn't mean they all act this way.
Have you been to any competitions yet? You'll quickly see everybody splits off into groups, but groups mingle quite a bit too. You'll see groups of 5 or so over there, 7 or 8 guys over there, but then you'll see people floating around and what not. You'll often find the same core group of people (Jim, Chester, Shaden, Mike), but anybody is welcome to come hang out.
Cliques here on SS are a bit different, and personalities are just different online anyway.
It appears to me that a decent handful of people think Dene isn't a nice guy, but (to my knowledge) Dene and I seem to get along just fine. I don't think he's mean at all, he tells you how it is, and a lot of times people can't handle that. Of course Dene belongs to a (few) clique(s), but he's pretty approachable.
Complaining about a clique publicly won't get you anywhere either. I had a discussion one evening with Lucas Garron about this, while I was annoyed with how some people were acting.
At best, just find your own group of friends, and ignore those that you don't like (or that don't like you).