One could, but the author clearly didn't check that. The number of users seems pretty much related to the amount of activity. Not very surprising. To verify, I

One could, but the author clearly didn't check that. The number of users seems pretty much related to the amount of activity. Not very surprising. To verify, I've taken the top entry, lemmy.world, and looked at the 10 most recent posts, and they're within the last 10 minutes. One post per minute isn't awesome, but well. Then I took 10 of the 0 user instances, and lo and behold, one instance had one post, the rest zero. So the number of users does seem to predict activity (atm).