No, it is them who should stay away from the club altogether
I'm sorry, but that is bollocks.
My great Uncle started going to watch City in the 1930s, and became a ST holder in the 1970s. Even bought some shares when we were really shite in the 80s.
He was a bachelor so always came to ours on a Sunday for dinner. For sodding years in the 70s I had to listen to him and my Grandad moan moan moan about our result the day before.
Were they "lesser" fans because they moaned? Of course not! In actual fact they were the foundation on why we got picked for a takeover in 2008.