The Publisher Traffic Collapse

Stack Overflow's question volume fell roughly 75% from its peak after ChatGPT launched. For a decade the open web ran on a simple loop: user has a question, Googles it, clicks a link, the site captures the visit. Stack Overflow was the definitive example in tech. ChatGPT broke the loop by answering directly, and Google's AI Overviews made it worse by summarizing answers inside search results, so being cited became nearly worthless: you get the credit, someone else gets the user. The company pivoted to licensing its archive to OpenAI, monetizing the very data that made its live product redundant.

For founders and operators, this case sharpens the question of how much of your business flows through a channel you do not control, and what happens when that channel starts answering questions itself. It reframes the danger not as sudden collapse but as a slow bleed that flips your unit economics before you react. When the window to build traffic independence actually closes is the uncomfortable timing the app makes you confront.