There’s use for local currencies… Just look at how cafe’s use them to reward customers. You issue a ‘token’ for each coffee purchased and then allow the customer to redeem 10 tokens for a coffee. The cafe can just give you x satoshi as thank you for being a recurring customer, but that’s just a discount. The limitations of the cafe punch card are what gives it value.

My supermarket here in New Zealand issues stickers. One for every 10 dollars spent, I think. When I have 35 stickers I can exchange it for two wine glasses. It’s an economic system that works and is useful. It’s not a solution for everything.