It seems to me that generally people are less rude and seem to be trying to be more helpful. There are (or so it seems) more up arrows and less down arrows. And it seems that more question askers select a 'Most Helpful' opinion.
Most Helpful Girl
I agree. Also, the new reporting system pretty much steals any thunder than trolls used to have. Questions that aren't questions (rants) get deleted and answers that aren't answers also get deleted.
So people who generally want help and want to answer have a better platform to do just that.3