Twitter/reddit/etc aggregation content collection - find top talked about conversations on twitter and repost as topics to be discussed here, is one thing that could work.
Important crypto-dates countdown timer, posts event information/links more frequenctly the closer the event is; like next halving, BCH fork dates, big meetups/conferances etc.
That sounds interesting, would be cool to see if the bot can live on the tips it gets as well. Price/Balance, I do not know what else it is possible to check with a bot.