This is an often neglected benefit of "Unlimited" plans. It changes the feeling of consuming. You have already paid so you may as well enjoy instead of asking "

This is an often neglected benefit of "Unlimited" plans. It changes the feeling of consuming. You have already paid so you may as well enjoy instead of asking "Do I really want to pay for this?" at every use. From a technical point of view it is possible. Assuming that the payments were mediated by some party that party could issues statements like "this user has used their monthly allowance but they would pay". Assuming that this provider is widely trusted websites may treat this as a "real user" and allow the visit. (This is roughly how https://coil.com/ https://coil.com/ works.) Of course there are negative implications such as making it very difficult for new providers to get started. You can also imagine some type of smart-contract where the subscription fee is split at the end of the day or month amongst the visited sites. Upon visit the sites just get a token for one share. Of course this would need to be very carefully designed to prevent abuse. (Example one malicious client splitting their subscription across millions of pages)