Lately I've been pondering how one might create a "probably a human"/skin-in-the-game system. For example, imagine visiting an "attestor" site where you can make a one-time donation of $5 to a charity of your choice, and in exchange it gives you some proof-you-spent-money tokens. Those tokens can be spent (burned) by some collaborating site (e.g. HN) to mark your account there as
likely a human, or at least a bot whose owner will feel pain if it is banned.
This would be far more privacy-preserving that dozens of national-ID lookup systems, and despite the appearance of "money for speech" it could actually be _cheaper_ than whatever mix of time and bus-fare and paperwork in a "free" system.
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I imagine the big problems would be things like:
* How to handle fraudulent payments, e.g. someone buying tokens with a stolen credit card. Easiest fix would be some long waiting-period before the token becomes usable.
* How to protect against a fraudulent attestor site that just takes your money, or one whose tokens are value-less.
* How to protect against a fraudulent destination site that secretly harvests your proof-token for its own use, as opposed to testing/burning it properly. Possible social fix: Put in a fake token, if the site "accepts" then you know it's misbehaving.
* Handling decentralization, where multiple donation sites may be issuing their own tokens and multiple account-sites that may only want to support/trust a subset of those tokens.
This would be far more privacy-preserving that dozens of national-ID lookup systems, and despite the appearance of "money for speech" it could actually be _cheaper_ than whatever mix of time and bus-fare and paperwork in a "free" system.
____________
I imagine the big problems would be things like:
* How to handle fraudulent payments, e.g. someone buying tokens with a stolen credit card. Easiest fix would be some long waiting-period before the token becomes usable.
* How to protect against a fraudulent attestor site that just takes your money, or one whose tokens are value-less.
* How to protect against a fraudulent destination site that secretly harvests your proof-token for its own use, as opposed to testing/burning it properly. Possible social fix: Put in a fake token, if the site "accepts" then you know it's misbehaving.
* Handling decentralization, where multiple donation sites may be issuing their own tokens and multiple account-sites that may only want to support/trust a subset of those tokens.