I have to agree with mprep that posts like that can be viewed/perceived as duplicate posting as it's stating the same thing on two different boards.
Let me propose an elegant way to circumvent, so to speak, those rules. Rather than stating the obvious, calling them a scam (which they obviously are) in a short message with abnormally big letters, better ask a polite well-reasoned question; something like this:
This could very well serve as a warning to others yet not get deleted...I don't know just a thought.