This is a semi serious question - do people not realize that you can follow across instances and it makes literally no difference?
This is the one reason why some of us were sort of hoping that Threads would federate. Because the celebs and other normies are likely to gravitate there, and there are a few that some of us would still like to follow/interact with.
If anything, this is my criticism against the way that Lemmy handles this. For example, my previous reddit habit was to follow a bunch of subs for TV shows that I watched. So last night when I was watching ST: Strange New Worlds, I really didn’t enjoy the experience of digging through 10 communities that each had the episode posts with the same 15 comments, and the occasional new thought. This isn’t even a criticism of the posters, if you came to the comments there would be some things that would be wild not to call out. I think ultimately I’d almost rather see the federation model for reddit-like services move down in the stack, and federate the communities rather than the whole instance. EG: there is a major ST collective community assimilating the smaller ones and becoming greater than the sum of their parts. Of course, this is also probably partially just because Lemmy/Kbin are still in their infancy, and I have a feeling that as time goes, things are more or less going to centralize in this way anyway, in the same way you could have multiple subs on reddit, but there was usually 1-2 big ones at most.
This isn’t a problem for mastodon, because when someone like Jeri Ryan joins, it doesn’t matter on what instance, I can still follow her in one place, see who she follows and follows her for other like-minded individuals, see all of her posts and re-posts, etc. What instance you’re on makes very little difference after the first five minutes or so and you’re acquainted with how it works.