Don't forget the instance operators! How can we get them more donations?
I recently found out about https://crowdbucks.fund (which is done for the Fediverse) and https://liberapay.com
Maybe a first step would be to offer a native way to link to such donation platforms (link on the user profile, link on each posting, ...)
Also donations for the instance should be promoted more prominent.
Bandwagon.fm is a great project, but unfortunately, ActivityPub/Federation is not yet reliably implemented and has too many bugs.
For example, if you follow a Pixelfed account and then unfollow, the follow remains on Pixelfed!
In my opinion, the ActivityPub part of bandwagon.fm is unfortunately not yet production-ready and should be tested and fixed more thoroughly.