From what I remember, Misskey fills the niche that Mastodon does and it’s been popular in Japan for a lot longer than mastodon was popular elsewhere
Also I’d be curious what the breakdown of Japanese users is across the three. Overall user counts are one thing, but maybe the number of Japanese users matches that order (Misskey > Bluesky > Mastodon)
From what I remember, Misskey fills the niche that Mastodon does and it’s been popular in Japan for a lot longer than mastodon was popular elsewhere
Also I’d be curious what the breakdown of Japanese users is across the three. Overall user counts are one thing, but maybe the number of Japanese users matches that order (Misskey > Bluesky > Mastodon)