Apparently Lemmy counts active users as users that have posted or commented, which means there’s quite a difference between total and active users. For Kbin, the difference is negligible. Does that mean that Kbin uses another formula for calculating active users?
Numbers according to FediDB right now;
Lemmy: 295,910 users, 57,546 active Kbin: 59,425 users, 58,999 active
I am not everyone, but here is some brainstorming:
skeptical refugees - A number of the new users are used to several vibrant communities, with less than 20k global users, the new users might have higher withdrawal symptoms and return to their previous platform. The fact that lemmy users are now ~2,000k across all the instances (with 300k active), it means that critical mass has occured and return to the old platform is no longer worth it for the majority of the refugees.
financial analysts - A number of financial analysts really want to quantify how much money they will make if reddit/Facebook/Twitter is mispriced based on the user migration across the last week.
lemmy instance sysadmins - a number of server costs are directly related to user count and active user count
lemmy Foss developers - a number of developers contribute based on perceived impact and count of active is a number with high correlation to perceived societal impact