In Poland (come for @nprofile1q... in June!) you can spend sats anywhere using @nprofile1q.... Tell the merchant that you want to pay with blik and use the app. There is literally a race between takers for every offer that comes up, even though there's still only handful of users. Usually it takes seconds for the offer to be taken and 1-2 minutes to be settled. We like non-KYC corn here.