I think it may be just because Bitcoin people brought part of their audiences and contacts from X, so they still get interactions even when they post non-Bitcoin stuff.

Completely new people are alone and they probably wouldn't get traction in any other platform either, no matter how good their content is. That was always my experience and is the experience of most people, and also the experience of many Bitcoiners here on Nostr that for whatever reason do not have many "followers".

I heard TikTok has this magic algorithm that enables anyone to be seen, but I have no experience with that, and honestly it's very hard to believe we are not just suffering from survivorship bias: "oh, this person came from nowhere and got traction thanks to the algorithm!" -- meanwhile thousands of others were "better" but didn't gain any traction even with the algorithm (or because of it).