It's not really slow growth though—it's actual shrinkage. Since the New Year down by about 12% or so. Also those dropping off are likely to be genuine users and not the suspect portion of the daily "trusted" pub keys. So maybe 20-30% shrinkage in actuality, who can say. These things go up and down, but it's been years at this general level already, and I have a feeling the next 12 months or so will determine how robust Nostr really is.