Stack Overflow Questions Down 95% from Peak — Now at 2009 Launch-Era Levels

Stack Overflow Meta·medium signal

A trending HN discussion (37 points, 21 comments) resurfaces data showing Stack Overflow monthly questions collapsed from 200,000 at peak to under 10,000 today. The decline started in 2018 due to hostile moderation, but LLMs accelerated it dramatically post-ChatGPT. 84% of developers now use or plan to use AI tools for code help. For builders: this is the canary in the coal mine for knowledge platforms — LLMs don't just compete with Stack Overflow, they're replacing the entire question-answer paradigm for developers.