This is IMO wrong. StackOverflow died way before AI - and way before 2020 too. I think it had a peak time of only 3 or 4 years. It was created in 2008, and I would reason it took a few years, say, up to 2011; then it was semi-okish up to about 2015, roughly. Then it declined.

It still has some value today, as sometimes you can find useful information on SO, but its peak days are long over and I don't see how it can manage to come back, with or without AI slop. It would basically require a lot of re-design and some things that never worked, such as the karma system, should be changed. Also moderators - they kill sites. That happened to reddit - I gave up after censor-mods constantly restricted everyone.

I disagree. From what I see, company specific stackoverflow like mailing lists or slack channels are also dead.

The normal day to day devs just don’t have the need to go to stackoverflow anymore.

One would have to explain both consequences or dismiss it as coincidental.

FWIW I rarely have the need to ask questions at the programming level to anyone anymore. It’s just not the type of thing I bring up or anyone else. We now talk about architecture and company direction.