@helene @kaede @lanodan > posts on Misskey are rejected if the post they reply to cannot be fetched or does not exist.
I don’t know if you mean that Misskey users can’t reply to posts using features Misskey doesn’t support, or something else, but if true that’s the worst thing I’ve heard yet.
I do think of fediverse as a counterpart to twitter and think that it should be interoperable. That’s the point of federation. If Pleroma and Mastodon and Misskey don’t support the same features or have the same purpose, why would they federate?