"rules on Mastodon often explicitly engage with systemic oppression across many different intersectional identities beyond what is required by the Mastodon Covenant"
https://fediversereport.com/last-week-in-fediverse-ep-40/
Yes, Mastodon has a Covenant.
https://joinmastodon.org/covenant
To be listed on the #1 onboarding website joinmastodon.org , a server running Mastodon must implement certain forms of censorship
"Active moderation against racism, sexism, homophobia and transphobia
Users must have the confidence that they are joining a safe space, free from white supremacy, anti-semitism and transphobia of other platforms."
One may wonder at the focus on two forms of racism
Mastodon gGmbh (non-profit LLC) write the Mastodon software
https://github.com/mastodon/mastodon
They also run joinmastodon.org , the first link in the Mastodon github page and the #1 onboarding website in Google search
They also run the 2nd largest Mastodon server, mastodon.social (the 1st largest is for pr0n)
mastodon.social is the top link in joinmastodon.org and the #1 Mastodon server in Google search
And if the server you're on doesn't censor hard enough it may be blocked by mastodon.social and other Mastodon servers
A feminist posting on https://spinster.xyz/ who has never mentioned trans issues loses their friends on mastodon.social because spinster doesn't censor transphobia hard enough
https://mastodon.social/about
But no problem, Mastodon is decentralized so they can just move to a server which doesn't block mastodon.social or spinster.xyz and isn't blocked by mastodon.social or spinster.xyz
Except their content can't be migrated
"Requesting an archive of your posts and media can be done once every 7 days, and can be downloaded in Activity Streams 2.0 JSON format. Mastodon currently does not support importing posts or media due to technical limitations, but your archive can be viewed by any software that understands how to parse Activity Streams 2.0 documents."
https://docs.joinmastodon.org/user/moving/