The author labels COVID and the launch of ChatGPT on the graph, but fails to mention that Stack Overflow was acquired in June 2021 by Prosus, a Dutch private equity firm. That looks to me like it matches pretty well with the entire downward trend.
A firm is sold when its owners believe they will get the best price. The selling itself is more of a symptom than a cause.
I don't think so. StackOverflow itself didn't really change for any of that period. Any changes in users must have been due to external factors.
> Stack Overflow was acquired in June 2021 by Prosus, a Dutch private equity firm.,
That is great to hear. I am glad that the original creators of StackOverflow got their liquidity event and are well off financially I suspect.