> How can facebook turn a dumpster fire like reddit in a bot that response with more empathy than a human?

Because people who say “Reddit is a dumpster fire” are usually just thinking of r/Politics, RedPill, TheDonald, LateStageCapitalism, basically any remotely political subreddit... when, in reality, there are plenty of subreddits where quality conversation can be had and some where people just share art or animal pictures, and these are pleasant places to kill some time (although there’s almost always per-subreddit groupthink, but it’s not like HN doesn’t also suffer from that in some cases).