Maybe this doesn't matter, but if magazines are unique between instances, how will we know if we are patronizing the most active magazine? E.g., Lemmy has, I dunno, @factorio, and Kbin has @factorio, is there an easy way to tell which one is more active?

Further, I saw a diagram floating around that suggested that magazines between different instances of Kbin are also unique. E.g., @factorio @kbin.social is unique from @factorio @fedia.io? Isn't that the same fragmentation as accessing different forums?

Wouldn't mind an ELI5.