Well, the last time someone posted a ChatGPT reponse, it was completely bogus:
One big problem with ChatGPT is that as a non-expert you cannot really tell when it is right or wrong. It happily spouts the biggest BS with absolute confidence. You always have to take the results with a grain of salt and double check.
Also, we often want to hear different opinions from different people. Ideally, someone will even come up with a new elegant solution. Finally, online communities also have a social aspect that computer programs such as ChatGPT obviously cannot achieve. So no, I don’t think that ChatGPT will make online communities obsolete.