@atomicpoet @mastodonusercount according to the site you link to, that's 11 million users - so not really that long ago, if that means Mastodon is 10/11 of the Fediverse and growing much faster than all other bits... but also depends on if you can extricate real human users from bots, which are definitely in greater numbers on Mastodon and a big part of the recent growth.