For all users, it's worth checking out the mastodon.social content moderation guidelines, at https://mastodon.social/about/more
As @sonya points out, not everyone may be happy with them.
As our host @Gargron point out, if you don't like them, you can run your own instance.
But instances choose who they peer with... so the Mastodon-based network may balkanize.
I'm starting to think that the right use-case for Mastodon is not as a Twitter alternative (long-term public presence) but as a Slack alternative (private and often short-lived discussion groups, or organizational intranet).
A group is motivated to pay for its own instance so long as it is useful... Who is motivated to operate one as a public service, with years-long commitment?
@johnhenry @Meaningness nah, the solution is real anonymous-payment systems. For centrally-issued cryptocurrencies this was a delightfully solved problem in the 1990s [1]; now Zcash seems to be solving it for decentralized ones.
[1] https://static.aminer.org/pdf/PDF/000/120/358/universal_electronic_cash.pdf