I did not say it right. I mean, for a given npub, how many that npub’s followees are zombies?
Discussion
Oh…you mean how many of your FOLLOWERS are zombies. Got it.
That's technically possible, but potentially resource draining, because once you get over a couple thousand followers, it would take a really long time to run the scan. There's also nothing you can do with this information, since you can't force another user to unfollow you, so there's not much of a point to doing this.