Most of those whinging on about "nostr is ded" are those that are addicted to huge dopamine induced delusions of their own importance or grandeur or whatever.
They are always going to complain. It's silly, IMO.
I'd ratter just stay in my cozy corner with the frens I've made and giggle about dumb memes, complain about working out, and testing stuff that interests me.
Nostr is what you make of it. If you want to make it a place of constant churn, so be it. I'll make it a place to discuss what I like with those I like.