Sucks for the hoarder, but that is indeed how bug bounties are supposed to work. The first reporter gets the payout, disincentivizing sitting on valid vulns.
The issue, as I understood it in this case was that he wanted it kept quiet until GTA6 launches, because announcing it to the public also announces it to Sony, and they'll patch it; normally that's fine, everyone just doesn't update, but given GTA6 is apparently quite popular, my understanding is that he wanted to let everyone get that one last update that allows GTA6 to run before they're stuck on that version.
So normally if the community found this stuff I guess they’d work together to make a jailbreak. Maybe they already were working on that with bug X but hadn’t told anyone.
The JoeClaudeUser posts publicly “Hey everyone I found bug X over here! I’m awesome!”.
Now it can’t be used because Sony will fix it. If they had already been using it behind closed doors all that work is flushed.
"PS5 running Linux" was hot news months ago.
They don't want to sacrifice any of that.
I'd expect you'd have to play offline, which might be a nonstarter when the disc drive costs extra, and live service games are popular.
Not a big player myself, and I mostly play older game I can buy for less than $15 but every single time I have heard about a big game launch in the last decade, the games were released in early beta quality, crippled with bugs according to the tests and news.
Yes; there have been some pretty high profile cases of games launching in terrible state, and Day 0 patches have become an industry standard, but acting like all (or even most) of big games launch like this is just sampling bias.