@grrrr_shark I would really love for non-Mastodon to become more popular on fedi. Currently, mastodon has some weird quirks (in that IIUC it doesn't adhere exactly to the APub spec/APub spec does not specify something well enough; I haven't tried to figure that out) and it would be nice if everyone didn't have to adopt to them.
Alas, having more popular instance server software would probably not alleviate the issues you see: I haven't seen any that try to deal with spammy creation of new instances at all. I wonder when we will start seeing software that e.g. considers instances that aren't in instance_of(followers(followers(me)) or sth similar to be likely spammy.