I just ran into this problem and I was wondering if anyone knew the lemmy software well enough to answer this. I'm seeing different stats on communities depending on which instance I view it from, and I don't know what the true statistics are.
Using a community I moderate ( /c/[email protected] ) as an example:
If i view the sidebar from its home instance: https://lemmy.world/c/maliciouscompliance
It says 91 users / day, 143 users / week, 2.19K subscribers
But if I view it from another instance:
https://lemmy.ml/c/[email protected]
It says 42 users / day, 85 users / week, 45 subscribers.
I'm assuming the user count is based on that specific instance, and subscriber count when viewing from another instance is based on subscribers from that instance only (so 45 subscribers using lemmy.ml accounts). But is the subscriber count from the "home" instance the true aggregation of all subscribers across the fediverse, or subscribers from that instance? And if the latter, is there a way to know the true subscriber count for communities across the fediverse?
The subscription amount on the home instance is the combined amount from all instances. The amount you see on other instances, is the amount from that instance subscribed.
So i asked the same on asklemmy and someone who looked at the code told me the opposite. I don't really know enough about lemmy to know which is true, but just fyi: https://lemmy.world/post/210506?scrollToComments=true