Okay, here's my thoughts on the member base here. No happy sappy 'everyone is amazing' bull here, because that isn't true. I'm not going to name anyone, but I have names for every case I mention, so no, I am not making this all out of my butt.
There is one simple thing I can and will concede to, and that the majority of PC consists of members who are more often than not friendly. Are there a few rotten apples? Yes. Do a few people put up façades of someone otherwise? Yes. But many of the members here are nice, and that's all good and well. However, being friendly doesn't mean there are members who have faults of sorts.
The biggest fault is the cliques that have already been mentioned. I do NOT think that cliques are necessarily a bad thing, however. My knowledge beyond CCP is a tad bit limited, so anyone more experienced outside of CCP may see my argument here as flawed, but the say I see it, if a person devotes a good amount of his or her time to a specific section of PC, as well as is at least moderately social outside of the forum, then there is going to inevitable be a stigma of being a part of the ___ crew. I'll use CCP as an example. I consider the DCC to be a bit clique-like, considering that many of the posts here are from regulars who have gotten to know each other via the DCC as well as off the DCC on VMs or other mediums of conversation. Sure, considering that the DCC is a thread, it allows people who don't normally traverse CCP or are brand new to push themselves into the mold, which happens a lot actually. Does this accurately define clique? Perhaps not, but the say I see it, it resembles one.
Now for the cliques surrounding a central figure that is a member here. More than one exists, but some are a hell of a lot more defined (and imo obnoxious) than others. It bleeds narcissism, and that central member gets put on a pedestal that gives off an impression, especially towards newer users, that they are for whatever reason 'different'. Not many of these central figures exist. A few of them are even humble, which I'll admit, knocks down the narcissism down a peg or 2, but not everyone works that way.
Aside from cliques, PC does have it's fair share of 'don't bother me, I won't bother you' people. Is there anything wrong with that? Not really, no, but they exist, and are solitary by nature, therefore 'not as open'. Just pointing this out cause they should get... recognition? I dunno if that's the best word to use.
I have something else to mention, but I need to dash, so I'll post it up later if I remember.