My first thought was it'll major on smart-arse, with a good line in sarcasm and insult. If they're taking the whole of reddit it could start to identify enough

My first thought was it'll major on smart-arse, with a good line in sarcasm and insult. If they're taking the whole of reddit it could start to identify enough context to know when to be smart, sarcastic or simply helpful. With some of the subs there are long discussions that stay mainly civilised. Same for the support subs it could learn the context and how of sympathy and empathy. Things that end up on front page, filled with snap sarcasm, will be a tiny fraction. I think it's going to be very interesting see what comes out.