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The simple answer to your question is "yes." by BAC69
The recruiting services aren't looking for violation sensationalism; they are looking for commitment success or surprise choice sensationalism. It isn't their job to report or discuss recruiting techniques and methods but only to find out who wants which recruit and which recruit wants to go where. Finding out this latter information would evaporate if they probed too much into finding out or reporting the methods.
The big disappointment in all this is that the NCAA seems to be equally disinterested in finding and reporting recruiting violations and it is their job and mission to do so. They more than ignored flagrant recruiting violations such as what happened with Cam Newton a few years back. They, in fact, sanctioned the payoff after the facts were shoved in their face--the payoff to the dad was okay because Cam didn't know about it.
Best I can tell, ND is relatively clean, but don't put anything past anyone else. Cheating (or at least stretching the rules very thin) is, I think, more the norm than the exception. There is a lot of money riding on this system, i.e. college football, so why would you expect otherwise.