https://www.ericholscher.com/blog/2025/jan/21/stack-overflow...
It was dying well before AI and while a knee happened coincidentally to chatgpt release, I don't think you remember correctly what gpt answer looked like for programmers questions back then. It was much later where it started assisting development.
I don't understand the motivation to reattribute the death of SO to anything other than AI, which it unquestionably was. GPT-3.5 was able to answer some small chunk of my programming questions (like 10-20% of them), which seems clearly reflected in the graph.
It doesn't matter. Even if it were the most friendly community ever, as long as their core value were the same - answering programming questions that with clear answers - it would have been replaced by today's AI completely. It's irrelevant today how bad GPT3.5 once was.