Misskey looks a lot like a federated Twitter alternative, kinda like Mastodon. It seems to be Chinese, which might be why most of us have never heard of it and why it has so many users.
@SuperIce@domage
Misskey is a Japanese twitter-like. Itβs actually older than mastodon and very popular in Japan specifically. They have custom emoji reactions under posts, they have animation and advanced markdown, they can have cat ears on their profile pictures, THEY HAVE QUOTE REPOST, chat, advanced search features, etc.
Misskey have been forked multiple times (foudkey, calckey, etc.) and those forks are more popular in English-speaking communities.