Ya WoS is centralized, but non-KYC, but they pulled their USA app. I still like them just because they're easiest. Self-custody lightning is insanely complicated IMO. But don't be surprised if you get rugged on WoS, even though I trust them. Just full disclosure.

As for zaps. Ya, kinda like a "superlike" I guess. I personally think zaps are overblown, but all the hardcoiners think its godly. The use case is still evolving.

I have seen someone post about needing to raise money for a crisis, and got zapped at least 1 million sats. Being able to donate directly on the post is a handy use. Post distribution and donation is directly linked. So that use-case is nice. But ya, verdict is still highly out.

I'm not a blind worshipper of anything. But you'll find a lot of blind worship here. There's promise, to be sure.