That self-righteous attitude being made fun of (i.e. That'll teach them!) is the morose self-righteousness so many of our generation feel these days when they figure out that they aren't the special flower who produces sacred works of art and are rather an id in a database who needs to be exploited for revenue somehow.
No one gives a shit if you stop using Instagram over this perfectly legitimate (in my eyes) move that was unfortunately retracted. Don't announce it over Twitter, because no one is listening but yourself.