His grand vision remains to leave Mastodon users in control of the social network, making their own decisions about what content is allowed or what appears in their timelines.
I don’t use Mastadon cause I don’t care for micro-blogging, but nevertheless, I like this.
That’s a virtual structure in github, not a legal construct. Those organisations have owners (minimum 2), but if they collude and go rogue, they can do quite a lot of harm. (See also https://docs.github.com/en/organizations/managing-peoples-access-to-your-organization-with-roles/roles-in-an-organization).
A formally incorporated nonprofit organization has statutes, organs, supervisory boards and all that by which they must adhere, so once set up properly, the software would be fully protected from malicious intent on a legal level.
…but you were talking about the git project in the parent comment? the rest of the thread is about company structure.