None of those worked as programming tools. I really miss Google Answers though, with the bounties.
Random example:
http://answers.google.com/answers/threadview/id/762357.html
It's remarkable how similar in style the answers are to what we all know from e.g. chatgpt.
That would be such a useful service today
It's remarkable only in the sense that you can see where the LLMs were trained from.