Personally, it feels like there are fewer "XXX's bio" posts on https://stacker.news/recent, which probably means fewer new users are joining. But hey, I bet k00b has the real stats to back this up.

Also, about CC—just my two sats: it seems to have a bigger impact on new users and not so much on the active crowd. But here’s the thing—active users are the loud minority, while new users are underrepresented.