I mostly did 3 years ago and have kinda nixed most of the rest of my reddit habits once RiF went down. It does move a lot slower, I cannot spend all day browsing askreddit or whatever in a depressive funk. I do still sometimes go on as part of searches for things.

I have no idea how many people though. The number of people on hexbear (daily users) is way lower than r/chapotraphouse at its height, assuming a continuity of community. There would be some people (possibly even a majority) who spend a decent amount of time on both.