There really should be a donation field “Estimated resolution cost” with payment options, associated with any user request. With a default payment preset by the maintainer to optimize mindfulness.
“I am here to help, but you shall pay with your cash or your cheap guilty soul!”
The problem with that is that there's a number of examples about how your entitlement increases markedly when you feel you have paid for something.
So if you don't have enough hours in the day, more money doesn't solve that problem unless it can displace other things in your schedule, and can make the number of people attempting to impose, and their attitudes, worse.
The largest problem with dealing with humans is handling both good and bad faith cases.
In particular, if you can't rely on the escalation path being willing to rule a lawsuit is "bloody stupid" if you offer, say, a discount on "all fruits" and someone tries to argue milk is a fruit, then you wind up with endless escalations of rules lawyering and perverse effects.
“I am here to help, but you shall pay with your cash or your cheap guilty soul!”