They would just use documentation. I know there is some synthesis they would lose in the training process but I’m often sending Claude through the context7 MCP to learn documentation for packages that didn’t exist, and it nearly always solves the problem for me.

The brilliance of StackOverflow was in being the place to find out how to do tricky workarounds for functionality that either wasn't documented or was buggy such that workarounds were needed to make it actually work.

Software quality is now generally a bit better than it was in 2010, but that need is ultimately still there.

Aren't a lot of projects using LLMs to generate documentation these days?