"I just have to step back and think "to each his/her own" but it's hard not to be turned off to wow by this kind of mindset as a player who lies somewhere between casual and hardcore."

If this sort of WoW talk actually makes you uncomfortable, I would guess that you're much closer to "casual" than "hardcore". I've been a very off-and-on player, played in leveling guilds, casual raiding guilds, and ONE "hardcore" guild--although I was never in their progression raid group. In every single one of those guilds (at least among those that ever stepped foot in a raid) this has been an issue. How do you deal with somebody who doesn't seem to know (or care) what they're doing, and harming the success of the group? In fact, I think this article & topic are even more important for the casual raiders--where does one draw the line between casual play and just-plain-terribad, and how do you draw that line so that the players understand? Although I do feel the language of the examples here is tailored to more serious raiders, the advice seems perfectly applicable to a casual guild, too.

Still, if it makes you uncomfortable, then it's probably in your best interest to stick with super-casual groups. And also to probably steer clear of WoW columns about guild leadership. :D