This. StackOverflow was great in the early days, when answers were fresh. Now? It's like so much of the Internet: outdated. Add to that all the students posting their homework problems, and wrong answers by wannabes, well...
I worry about a sort of idiocracy thing where we train the AIs on stackoverflow, stop using stack overflow and then find ourselves in a position where there's no stack overflow to train the AIs off haha.