As sometime who has worked full time on this for over 5 years now, I have found a few aspects of your answer: The technical challenges of doing it with credit cards are overwhelming (in CC parlance, a "microtransaction" is anything under $10) due to fee structure. You can simplify this by using a different payment rail (in my case, Lightning over Bitcoin), but now you have a different problem: nobody has Bitcoin. You…
Obviously you are aware of this, but here is a concrete example of micropayments in practice: When I use (for example) Vultr cloud compute ( https://www.vultr.com/ ), I load my Vultr account with $10 via credit card. Once the money enters the account it remains there until it is spent Then I pay 1 or 2 cents each hour for a cloud instance. At the end of each month, Vultr tells we what's due if I exceed what remains i…
I dont see how this is any less relevant today than it was 12 years ago.