As for the last part, if Linus from LTT is to be believed (I usually trust his opinions), on the WAN show they were discussing this just last night and he said that the majority of YouTube premium revenue goes to the creators. Or, rather he said that YouTube doesn’t pocket the majority so there could be some tricky nuances in there somewhere but he seemed to indicate that the creators get more than YouTube does in that deal.
I’ve been struck by the same thoughts lately as well, coming from Reddit where I expect hostile attitudes and at times even contributed to it, Lemmy (and to a greater extent, beehaw) is still pretty quiet as far as trolls/haters go, there’s active moderation keeping them at bay when they do show up, and the bulk majority of contributors are friendly and enthusiastic about their topics (rather than the toxic circlejerks of Reddit past.)
I still use Reddit occasionally. A little bit to scratch my news/social topic itch and for the few communities that haven’t migrated here yet.