And of all things, it was full of Nazi dogwhistles. When that was brought up,they quickly and quietly changed the name and description of the game on Steam.

I like almost everything on this plan, except for the last 2 items. The account requirements for "extra activities" best be chosen carefully as to not encourage the good old "karma farming" that we got away from in leaving Reddit.
And the ML thing for recognizing NSFW is also something to be carefully considered. Too strict and it gets annoying with false positives, it can restrict posting actual content, and too lax won't make a difference for the people actually looking to circumvent it. I think a "vetting" system like the previous item could be better in the long run, in only letting "trusted" people upload content.

Having Lemmy alts is not a bad thing. Using them to circumvent bans very much is, tho.