So I did figure out that yes, #Mastodon can federate #Lemmy and #Kbin content. The problem is that Mastodon doesn't know what to do with it, so it (the group) looks like a user that boosts all posts and comments.
I found myself browsing the "federated group" @selfhosted over on https://kbin.social, as I think Kbin has a nicer UX for it.
I didn't really want to create a separate account for group stuff, but that might be what we do in the short term. 🤔
I wrote this in another thread, so copy pasting it here:
I believe that the limitation is part of the Mastodon app, and not related to the Fediverse. There might be a character limit but I don’t think it’s as limited as Mastodon’s.
Btw, Mastodon isn’t really fit for this type of conversation. Mastodon aims to replace tweeter - microblogging interaction, where Lemmy aims to replace Reddit - thread interactions.
Each comment on Lemmy will be treated as microblog on mastodon which isn’t really practical.
Except that that sounds like a Mastodon lack of features. Cuz Twitter had threads. As long as you were replying to someone each conversation was a sub thread and so on.