I think this guy downvoted for being rude, not necessarily for being wrong, although probably everyone who downvoted him thought he was wrong as well, when he was correct.
This whole "cancel culture" thing is a 2020 thing, while HN has operated like this since when? 2005? HN has been "cancelling" comments since forever, and it's suddenly a problem? It's part of the rules of the game here :-) You play or you don't.
ok when I said he was correct I meant his main point was correct, which I did not see as the cancel culture thing but rather that Apple does not keep the 30% commission. The cancel culture thing I saw as more of the rudeness.