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.
Traffic started dropping precipitously in summer ‘20. There were no widely known LLMs then, let alone ones used outside labs. ChatGPT went public in November 2022, well into the decline.
While AI was probably the last straw, it only hastened the collapse that was already underway.
> I don't understand the motivation to reattribute the death of SO to anything other than AI
A lot of people are rather bitter that they couldn't get the response they wanted from questions in the format they wanted to ask them, and would rather think that this slight against them is part of what killed the site. If it is all due to AI then they can't tell the tale of how SO rued the day its community deemed them off-topic :)