Right, and I'm asking if there any interesting figures primarily using this platform to share interesting content because I don't know of any, and I didn't find any niches that were best served by this platform.

In the past, the way that I would typically get to know people online was either through niche topic-specific forums or IRC channels. Then eventually if we got to know each other well enough, we would connect on other platforms. The modern version of this seems to be Discord. These platforms are all topic focused, rather than being user-first.

Discoverability is important! And one of the limitations of search or tag based discoverability is that you're limited to finding things which you already know about. But it doesn't help you find new things that you don't know about! This doesn't mean that algorithmic discoverability is the only option, for example: you could find some way to map the user's interest spaces and search for unexplored or undiscovered nodes.

Discoverability is a huge challenge in any decentralized social protocol.

We've been talking a lot about this problem in nostr which can't be summarised in a quick HN comment but gathered some threads if you're really interested

https://asknostr.site/question/note1es989rjaccw82gpp705u462y... https://asknostr.site/question/note12dp9ewpngxejq8w9s6699k5z... https://asknostr.site/question/note1cp5cw366g7q9c2txvtrws0h7... https://asknostr.site/question/note1zqjk556quu6rvyetzvhdv7p3... https://asknostr.site/question/note1ss842g38wafwcfexd78gx0sc...

Nostr supports #hashtags just as twitter.