It can’t be bought or sold because it doesn’t belong to anyone. That’s one of the benefits of it being open source.

And anyone can set up their own instance, so there’s no way to force a change at that end either. That’s one of the benefits of it being decentralized.

Any unwanted changes would just result in a fork, and instances would use that instead. The way it’s designed stops it being taken over by corporate interests.

There’s actually a Lemmy app on called Lemmur. I downloaded it but it doesn’t seem to be working at the moment.