~snip~
I understand the point isn't earning some some satoshi. But my point is it's possible the on-chain TX fee could be higher than the "reward" which lead to loss.
~snip~
I agree, but hopefully they won't be disappointed too much when they realize the fee.
Carrot app only works with lightning. There's no on-chain transactions, so there's almost no fees.
If you use a custodial lightning app the fees are basically zero. Also you can use Muun as a non-custodial wallet to receive the sats for free.