So basically you're thinking of a wallet that can only be used to send tips to websites, instead of a wallet that can be used to send coins to any address?
I would like to have an app for sending small tips if iht's off-chain and operated by a trusted party (for instance an exchange or online casino). Small tips aren't worth paying transaction fees, and an off-chain solution would be nice. LN could work, but for small amounts I'm fine trusting a third party too.
Thinking about it, it's more like a protocol for knowing where to send the money to. What you are talking about is essentially an exchange where you can just shuffle money between different peoples accounts. They would probably have to pay to withdraw their money or you send it.
You can batch the tips up and send several in one transaction. We want to encourage people to to use the coins, not just save them.
If we can get it down to three clicks, then people might start using it.