Even if your numbers are true. Mastodon has existed for 7 years. Bluesky for less than one.
That doesn’t matter, because most users just came in the last year. Just shortly after Mastodon begun to explode in 2023 from 2 million to over 10 (and now seemingly over 15 million) registrations, Bluesky came in. So the 7 years comparison doesn’t matter here.
So logically the precentage of users to active users should be much higher on Bluesky.
Probably, but without statistics its just our gut feeling. And as you saw a few minutes ago, your gut feeling can be drastically wrong. My point was not here to race count Mastodon vs Bluesky, but to point your estimation of Mastodon accounts being vastly underestimated.
According to Wikipedia Bluesky has 10 million users and 5 million monthly active: en.wikipedia.org/wiki/Bluesky That would be about what Mastodon has, if we believe those numbers. My point is, you totally over estimate Bluesky and underestimate Mastodon. The exact numbers does not matter here, what matters is my point that the user base is split into these two worlds.