But when I think back to all the “long comments” and “spark conversation” type posts, they’re not lovely. They are politics or other things that spark FB’s equivalent of a flame war.

So my fear is that using those things to indicate these posts should be more prominent is going to be a tricky thing for them to get right.

Getting a computer to decide between “has lots of comments because it’s a fight” and “has lots of comments because it’s useful and interesting” is an interesting challenge.