Never once had a cashu zap (or zap equivalent) fail. Gotta retire LN zaps.
Discussion
Try that again once people only accept zaps from certain mints.
Will fall apart in seconds
I don't get why. They are banks that have LN (or other channels) in between them (if I get it right).
I use mint A, you use mint B.
You send zap = You tell mint B to send BTC (LN or other) to mint A and mint out that amount to me.
You're just outsourcing the LN node + channeling to a more common level (which should ideally be quite small and private imo).
If you're in a group it should be on you to add the group mint. That should be part of group onboarding. If you don't add that mint then I don't see that as any different to not adding a LN address here.
If you take the view that Nostr doesn't scale outside of a small world context then what happens in a big world context (i.e the current wilds of Nostr, even though to be honest here is still like a group in spirit) ins't indicative of much.