@Flanker You could maybe record the date of the last post and fetch posts (with reasonable intervals, like 1-2 req/s) until you hit one with a created_at earlier than recorded date. Shouldn't be a problem unless there happen to be some posts out of order. Or do the same with flake IDs like AskGA7mLKPPzGh6uK8 (which while semi-random are still generally sequential).