Even if you have a point buried in your vitriol somewhere, making a throwaway account and delivering it in this kind of way is a new low, _especially_ since you know the guy is still in highschool.
If he'd approached it as "I'm looking for an internship where I can learn something," I wouldn't have replied as I did. Instead, he tried to puff himself up as something he plainly isn't. And, hey--I like popping bubbles.
In retrospect, the throwaway account probably wasn't necessary, as the original post was upvoted. I s'pose other people don't really dig that sort of thing either.