What really annoys the hell out of me is whenever someone mentions the game SC2, there's at least three games that come to mind that it could be and two of them are in the same genre. And then there's all the times I see a MW2 thread, I'm like "Sweet! A Mechwarrior 2.... Oh, it's that stupid game." <_<
Actually, I've gotten that problem too, which is part of the reason why I generally don't refer to games by their acronyms, unless I'm talking about KOTOR, because typing Knights of the Old Republic every time I want to reference the game is kind of inconvenient, plus I don't know of any other game titles which can be shortened that way, I guess S.T.A.L.K.E.R. also counts, but that acronym is actually the name on the box, and I'm not even sure what it's short for.
And it always amazes me that in this forum a topic about acronyms that may confuse some players can suddenly move towards the subject of guns that shoot coffee.