Stack Overflow question volume charted against the arrival of AI assistants

Sources: Stack Exchange Data Explorer query, HN discussion
Summary: A Stack Exchange Data Explorer query plotting monthly Stack Overflow question counts drew a large Hacker News thread on 2026-07-18, with commenters reading the decline against the public release of AI chat assistants.
Comments: Several HN commenters argue the decline predates ChatGPT and that the assistant release accelerated an existing downward slope rather than starting it, with one noting a visible dip during the COVID period. Others attribute the fall as much to aggressive moderation and an unwelcoming answer culture as to AI.
Why it matters: Question-and-answer traffic is a proxy for where developers seek help, and the shift toward AI assistants changes how tacit engineering knowledge is captured and made searchable.