Google.
Recent(as in the last couple years...so maybe 2-3 seasons?) examples are at USF, Okie State, Cal, UCONN, and AppState(in a relatively infamous and plot twisting way). I will offer up that Floyd at UTEP refused and was absolutely destroyed by the media for it. Same with Capel at AppState.
This is off the top of my head. I dont know players, except for the UTEP one, without looking them up. You do it...or dont. Either way.
I am not making generalizations, at least I dont think I am making them as a way to make a point without it being true. Unfortunate you feel that way.
The NLI is the worst contract in sports- https://www.si.com/college-football/2015/02/09/national-letter-intent-punt-pass-pork
If I had a child who were a 4* recruit, I would push for financial aid papers only. Even if they were a high 3*, I would push for that if the coaching staff were pressuring for an early signing day to lock my kid up. Financial aid papers or bust.
The system is bad, many recognize its bad, and therefore all these exceptions and qualifications have been informally established. This is all just a spectrum and where you guys fall on said spectrum happens to be in a different place than where I fall. You are OK with some exceptions to the rule but not as many as I am. This is really what I am being ripped on for- being OK with more unofficial exceptions than you. Nobody thinks the letter of the law must be followed without exception, but I am some crazy for being OK with more exception than you.
Its laughable, really.
That Memphis article is completely irrelevant to what engie asked you to provide references to. He asked you to back up your statement that "a release isn't unique, even when there is no coaching change". Referring to incoming freshmen, where the school has had no coaching change or any changes at all since the player signed the LOI. You still haven't done that. Now, you're on to providing examples of players already enrolled transferring, and completely dodging the question engie asked you. You still don't get it that schools just can't wait until August to see who shows up on campus, with no commitment from a recruit. College basketball is big business, and schools need to have that assurance that its OK to stop recruiting other players that might fill the void if Player A doesn't show up. Yeah, it may suck for Player A, if he has a change of heart. But that's living in the adult world. You make decisions, and you live with the consequences of those decisions. Those consequences may be awesome, or they may suck. How would you feel if a group of talented 5 star AAU players committed to us, there was no such thing as a LOI, they all get together in the summer leagues before school starts and decide they are going somewhere else together? With the school that they committed to (but never signed an LOI, because those don't exist in this hypothetical situation) left in the cold with zero recruits showing up for that year. I guess you'd be OK with that.