[TFFKAMM]

For a lot of these people (check the Comments link in #1), any commercial success by people other than themselves is prima facie evidence that said successful person/group has Sold Out to THE MAN, and is deserving of the worst treatment imaginable. It's envy disguised as righteousness, and it's as old as the Cain & Abel story.

[weegee]

The Party considers you a comrade until it is determined that you no longer serve the agenda of the party (even if it is because the agenda has changed).

After which you are cast out and reviled in a revisionist take on historical events. It wasn’t just Stalin rubbing out (literally from photos) politically incorrect individuals. Elia Kazan was shunned the rest of his life by the Party faithful (even by those like Nick Nolte who weren’t in Hollywood back when he testified as to the Communist infiltration into studio production).

When you are no longer “cool” you’ve sold out to The Man.