The caliber of trolls has improved greatly. They are much more subtle than they used to be. I identified one troll, Those_Crazy_Liberals, who would come here just to name call and cause dissension between various factions. She was quite subtle and it took some time to identify her, but I did.
There's something just not right about DawgPile. Too many insults, too much race baiting, not enough substance. When you call him on the lack of substance, he simply says, "Well you wouldn't understand. I've got an economics degree."
It's very possible he's a troll. I'm leaning more towards child or Chinese national, but... you might be right.
If I remember correctly, Texas Dawg was claiming to be a retired military fighter pilot when I first saw him on this forum. Now he's got an economics degree? He sure gets around!