It may be that Nostr's chief source of potential is in the "other stuff," but that has not been explored as thoroughly as the microblogging space. Devs will get there, in time.
Have you never heard of Mastodon?
I've *heard* of it. Why?
It existed for a long time.
Over 1 million users
Somewhat-decentralized
Better user experience than Nostr by far
Better backend and frontend tech
Try https://poster.place to see sample
Mastodon isn't it. It has a bunch of inherent problems that can't be rectified. The fact that you are attached to one server for instance. It recreates the problems of email in social media.
Content wise it is alright though. Apart from the blocking fetish.