Whoever can solve applying topic change-point detection (e.g. https://aclanthology.org/C18-1212/ https://aclanthology.org/C18-1212/) to wide-ranging Discord and

Whoever can solve applying topic change-point detection (e.g. https://aclanthology.org/C18-1212/ https://aclanthology.org/C18-1212/) to wide-ranging Discord and Slack channels, and put together a novel UI for discovering probable thread-intentions there (for both closed and open communities) would unlock an incredible repository of human knowledge. There's a massive opportunity here.