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.
I take it that you missed the whole WordPress situation that developed over the last couple of months?
It’s about control over the intellectual property (trademarks, copyright) as well as control over the company which pays the developers. One does definitely not want a single person in control of these things, otherwise they can hold the whole project hostage (like Mullenweg is accused of, in the case of WordPress).
Additionally, the change also gives them a preferable tax status than the previous arrangement.