There's no proof shown that that guy is a merit source, and it could very well be just a scam offer or just some dude selling his merits from an alt account or something. Without his bitcointalk userid and proof that it's actually that account making the offer, there's not a hell of a lot anyone can do here.
I agree unless there's a concrete proof showing that he really is what he say, then and then it's probably punishable. There are lot's of people doing this, and all i can say it's pretty risky selling merits.
I maybe wrong about the merit source. But he has alot of merits to sell.
it's wrong to falsely accuse someone. Besides, you're the first one to message him, how do we know you're not into buying merits and just being vigilante. When things go wrong, you try and act so mighty.