Current breakdown at the time of this post sorted by the number of monthly active users:
- lemmy.world: 101,013 total users / 27,472 active users
- lemmy.ml: 41,972 total users / 4,905 active users
- beehaw.org: 12,270 total users / 4,178 active users
- sh.itjust.works: 17,509 total users / 3,381 active users
- feddit.de: 8,675 total users / 2,935 active users
- lemm.ee: 10,348 total users / 2,751 active users
- lemmynsfw.com: 22,967 total users / 2,310 active users
- lemmy.fmhy.ml: 8,777 total users / 1,704 active users
- lemmy.ca: 5,072 total users / 1,656 active users
- programming.dev: 5,058 total users / 1,242 active users
But it makes sense to include it here since kbin and lemmy are both link-aggregators and both part of the fediverse. From lemmy.world you see beehaw.org in the same way as kbin.social. No important differences. Same can not be said about Mastodon.
The issue is that the page where the screenshot was taken from doesn’t allow to list both Lemmy instances and Kbin instances at the same time. You need to take two screenshots to show both services, or to use another listing source that shows all services you want to be shown, and I don’t know whether it exists or not.
fedidb.org threadiverse tracker does lemmy+kbin stats