It's churn. The problem with getting more than 1% of bitcoiners using nostr is that a huge chunk of these potential users have already churned through nostr. The nostr churn rate is insanely high, for non-bitcoiners, but for bitcoiners too. A big chunk of the bitcoin community on X has given it a kick of the tires. Zooming out, hundreds of thousands of bitcoiners may have churned through already. So now you have to get them all back a second time, or a third time, it's almost impossible, usually you only get one shot with this, they don't come back for a second kick of the tires.