I've heard countless theories on what games have the most morons, and almost none of them make any sense. Human beings are morons to a lot of people if those people don't understand or agree with them, so - in a way - the less tolerant you are and the less you know about the human mind, the more morons you'll encounter.
In my time, I've met a lot of people online I didn't care for - but I've always tried balancing that with the acceptance that we're all different. Unfortunately, I've found that to be a less common position than I would have hoped. In fact, I fear that it's the majority opinion that people are morons when they don't behave or act as you think they should.
The F2P model has no barrier of entry in the form of money, and they do tend to demand less of the player in terms of challenge - but the latter's more of a common trend not exclusive to this model.
The only real difference here is that if people don't have to invest any money, they don't really have to care about the game to play it. As such, you will find people less interested in the game and more interested in doing other things, such as being a pain in the ass.
Doesn't mean sub games don't have those people, oh no, but there's a readily apparent upped frequency with F2P games.
When I played WoW, I played as an "elitist" in that I focused on progression and, essentially, higher numbers on screen. But I never integrated that goal into my online persona, which is probably why I got to be "friends" with hundreds of people.
I also figured out that there were lots of people interested in raiding, and there was really no reason to stick with a guild whose leader or general attitude you didn't enjoy. As a result, I started out switching guild quite a few times - and drove my ex-GF crazy (as she sort of had to come with me every time), and I did that because I don't enjoy playing with people who put others down or who don't behave with what I consider to be common decency. Loot whoring, for instance, caused more drama than pretty much anything - as did guild leader primadonnas.
I also ran my own guild for a while with good success, and I made sure only to invite people with decency and who understood that they weren't the only one on the team. I could do that because I'd played on the server for years, and I pay attention to how people talk. As such, it was relatively easy to get a strong team going - and we had a fantastic time raiding for a while. We were one of the "best" guilds too, though we weren't really competing. I think we just enjoyed playing together so much, that success became sort of a natural result.
It's not like raiding is that hard, it just requires dedication and teamwork. That's all there is to it, really. The role of the individual is often extremely simple, even for the key players like tanks and healers. It's the pressure to perform that makes it seem harder.
That's why I never understood elitist behavior - because succeeding at a computer games is so utterly inconsequential, that I could never look myself in the mirror if I made my "skill" into more than it is, which is simply dedication and investment. If you do something you love for a long time, you'll be good at it. It's not rocket science, and it's not special.
Anyway, the point I'm trying to make is that YOU are a big part of making the social experience special - and it's not always smart to focus on the other players as the problem.