I doubt they care about such things.

Absolutely! Using open source software is much cheaper, as well. Hiring developers to work on open source software/OSs would cost less than buying software annually. Governments pay stupid amounts of money for easily replaceable software.

It’s because Fediverse is very complicated right now. E-Mail wasn’t, that’s why everyone adopted it pretty quickly.

I honestly don’t see a future where Lemmy topling Reddit or Mastodon topling Twitter.

Federation’s greatest strength is also it’s weakness imo.