I'm sorry that you got scammed, but damn, this makes me laugh. I guess karma caught up to you already.
anyway, how are you surprised that a scam project scammed you? judging from the negative feedback(that has evidence supporting it) and the flag against you, you probably wouldn't care if the project you are promoting is a scam as long as they pay you.
What goes around comes around (karma they say is a bitch). For what is worth it he has for ones also tasted that same miserable feeling others to whom has fallen victim of same enterprises he promtes felt when they were scammed. The law is simple, don't do to another what you know when done to you you won't like it. The project didn't pay else he wouldn't be throwing the tantrum.