Never take more from the user than they chose to send
Quote
that was purely for the reason of that you don't surprise the listener when they chose Okay, I'm gonna send 1000 SATs and then more than that came out of their wallet.
Episode 92: Space Boost (episode page, opens in a new tab) 00:57:46 (play audio from this timestamp, opens in a new tab)
Voice-matched
Summary
Explaining why app-fee splits come out of the boost total rather than being added on top, Dave says the original reason was to avoid surprising listeners. If they chose 1,000 sats, more than that shouldn't leave their wallet.
Also said
Episode 91: Splitting the Tab (episode page, opens in a new tab) 01:18:07 (play audio from this timestamp, opens in a new tab)
if it always comes from within the split total, then the user is never paying more than they expect it to pay.
Voice-matched