Suppose there is a blurry line between popular note and popular poster, no? Same on all social media ¯\_(ツ)_/¯.
But I also everyone knows this before they look at a feed like this. Or the Primal trending sidebar. (You can also make the same case for zaps).
You might even make a case that nostr is the same scenario but amplified, cos replying to large follower numbers accounts acts as some sort of discovery tool(?) 🤔 Not many otber user discovery mechanisms except maybe the asknostr hashtag?
Just the reality of it.
(Perhaps 'popular on asknostr' is a possibly good DVM? 🤔)