You say this as if you can't even faithfully reproduce text that is at the top of your context window, which would explain the rest, such as hallucinating anyone saying anything about play testing.
> angry [..] bitter [..] mediocre
I detect no trace of that in the comment that sent you, and all the more in yours. Probably a coincidence.
It is astonishing how many submissions on HN now have a top comment doing the AI sniff test bullshit, usually based upon literally nothing. Aside from being angry gatekeeping assholes, these people really want to show how super advanced their AI-dar is, but it's just a gigantic waste of time for everyone else and just false positive matches everything: Every comment, image, website, game or app, book, and so on, it's all AI to these people.
Many haven't yet caught on that these people think everything is AI now -- that they desperately want everyone to know that they haven't been "had" -- so people still sincerely ask "why?" like some secret tell will be revealed, when really it's just worthless nonsense.
I suppose, the healthy position is not to deny reality:
1) LLM leaves its signs in texts, code, and imagery.
2) It's not necessary a reason to be outraged. Like, for a game it's not a major thing to judge really.
There are things that are obviously "AI", in a detrimental sense. But there are many, many more things where asshats doing a purity test are running around declaring everything AI.
Clean website that follows norms and expectations of affordances? AI!
Text that you spent time to try to refine? AI!
Basically anything that doesn't look dogshit, amateur hour garbage? AI!
That is where HN is at, and these "AI purity test" comments appear constantly, in basically every show HN. You aren't seeing the "signs", you're backwards luddites that think you can shame people actually creating things, and it has reached a farcical point where it's just noisy nonsense.
Every "this looks like AI" comment should be flagged to oblivion if HN wasn't basically a retirement home for industry washouts. But it is, so they always rise to the top. Every discussion ends up tied up in worthless noise where people who've created nothing try to dismiss everything.