I think you guys are jaded. Nothing is ever as fun as the first time... unless she is very good.

I've dabbled or played a lot of multiplayer games myself starting with MTREK back in 78. Now that wasn't a MMO by today's standards but it was multiplayer and fun even though we didn't even have a monitor. Your turns printed out on a teletype (combo typewriter/printer). My expectations then were very simple, I wanted a tactical challenge and MTREK delivered that. (BTW: it was a game based on Star Trek and you had to do trig in order to shoot your opponent)
As far as players being less friendly, I think that is a direct relationship to how many are playing, much like another thread in these forums talking about the general observation that country folks tend to be more friendly than city folks, which is tied to people per square mile (or kilometer).

There is actual scientific evidence to support that phenomenon based on controlled colonies of mice. I call it street face. Myself, I am great one on one but as the density of people around me increase, I tend to introvert and become more offish, put on my street face and just move on. Why? Well because I think part of it is human nature and part is a learned response. In nature, most creatures tend to disperse throughout an area so that the natural resources are not all used up and therefore life can be supported indefinitely. Humans tend to somewhat ignore that concept. The learned response is well if you ever have been ganged up by other humans, you learn that mob mentality isn't something you want to be the object of their attention. Predators tend to seek out the weakest, so survival ends up leaning on the facade factor, eg: who looks the weakest and don't be that one.
Anyway, games tend to lose their luster with me when my only goals are to gain another level or a new shiny bauble. The only games that stay with me are those that have a higher calling so to speak, like Civ4 where you actually win, and I play that multiplayer only for the most part. I am thinking that WAR will with their RVR bring that longevity for me. I never really got into DAOC enough to try it there as I arrived at that game late and it just didn't stick with me.
So in retrospect, our expectations on what a game should deliver is the salient point. I also think that your actions within the game world making a difference is the other and that gets watered down in direct relationship to how many players are in that world. Everybody wants to be a hero/villian.