I think part of answering what Nostr’s pull could be is finding a way to decouple its strong perceived connection to Bitcoin.

There many many people that will avoid it a all costs because of that.

Both BlueSky and Mastodon are way more diverse which makes it more appealing for people to join.

Here seems very niche. You can see this when looking at the Nostr firehose vs the BlueSky firehose for example.

I am not sure if changing this perception is even possible.