Eh.. he looks legit to me. He's on day 5, so 19 posts isn't bad. If he's in no rush to get to the classifieds, and if he's participating in other, more meaningful, threads — which he seems to be — I'd say it's all fine and dandy.
Yeah, I agree. 3+ posts per day isn't exactly screaming to get into the classifieds.
But leave IBM alone, he's a cripple that doesn't have time right now to go investigating posts.