How do you even measure retention? Anyone can comeback at any time. You only need the private key.
You know what’s not shown in the numbers of #nostr user retention?
For all the many users who come and go, there’s a nostr:npub1r8wdfruydenz84fxfespcswuhcvyatx6umtd5xguexup49u500xskf50hn in the mix who has chugged the purple gatorade and is spreading the word!
Discussion
New npubs, and notes being published by unique npubs, I would think.