Still, 750 is totally not a small company, also they manage and host matrix/element, that are way more edgy in terms of technology, takes a LOT of time only for maintenance if you have bigs rooms :

https://wiki.mozilla.org/Matrix

Choices are not neutrals and I don't know what I would do at their seats, but I think it's a bit sad that mozilla invest more into matrix/element instead political opinion makers like these social network xitter alternatives, fediverse & all <3

Maybe I don't know shit and maybe Mastodon is also a heavy mess to selfhost !