MBaggese: It's not taking 30 seconds for a shot that raises eyebrows, it's taking 30 seconds to complete a swing that does raise suspicion.
I have never come across it but it would yes.
I was really replying to an earlier part of the thread in italics below. Maybe I read it wrong, but the way I read it I have seen suggested before, and I don't agree it's a good methodology:
In RG's there is no way to know what anyone is doing- the interpretation of putting stats may or may not be valid here. In team play- suspected cheaters can be sniffed out if they take an unusually long time to setup their shots (more than 20-30 secs typically) and then "grey out" in the menu for more than 5-6 seconds on full shots and around 8 secs on putts. Said cheaters take full advantage of the 15 second limitation.
EDIT: The last part mentioned full advantage of the full 15 seconds every time. I usually just play with friends so never studied it like that. Even 15 seconds grey too often is odd I agree. The part I put in bold though was the part I focused on.