I saw many names frequently pop up on reddit, it was the reposter’s and karma whores.
I see many names frequently pop up on Lemmy and it’s people trying to fill the same spot.
Frankly this is exactly what I don’t want to happen. This small time celebrity like worshipping that comes with certain posters was extremely popular on BBboards and made it incredibly hard and uninviting for new people to join in these already established communities.
Also on Reddit being a poweruser meant that you could probably sell/loan your account to shady advertisers, which isn't as much of a problem here since the Fediverse isn't monetized by ads.
Additionally, I think power users are a problem if they're just blindly spamming posts without engaging with the community, not so much if they're just organically filling the void with posts.