I chuckled when I saw that. Dude writes on a gaming site about video games, and he's trying to make himself out to be "cool" because he doesn't know the difference between ogres, orcs, or goblins? Who's he fooling?
-Internet, roll a bad joke comprehension check.-*rolls* ...1.
-You misunderstand the joke's intention completely.
It's self-deprecating humor. If the subject were too nerdy for him, you think he would know there is a difference between orcs, goblins and darkspawn? ('Sides, there really isn't much, at least between orcs and darkspawn.)