A combination of a few things. NOSTR reads, the search feature, and the fact I can zap directly in the app. When I was using primal before it kind of creeped me out. It felt like it was very similar to traditional social media. I also like subscribing to premium to help support whichever app I’m using, and I feel like I get way more bang for the money with Primal premium than with any of the other premium subscriptions I’ve signed up for.