[Terr_]

Exactly, "ID" is a solution masquerading as a requirement, the real requirements are far more granular, and the more we can narrow it down then the better our chances are for a solution that isn't evil/abusable.

To recycle parts of an old comment [0]:

> If I had my 'druthers, there would be a kind of physical vending machine installed at local city hall or whatever, which leverages physical controls and (dis-)economies of scale.

> The trusted machine would test your ID (or sometimes accept cash) and dispense single-use tokens to help prove stuff. For example, to prove (A) you are a Real Human, or (B) Real and Over Age X, or (C) you Donated $Y On Some Charity To Show Skin In The Game.

> [...] The black-market in resold tokens would be impaired (not wholly prevented, that's impossible) by factors like: [...] scaling the physical portion of the work [...and...] There's no way to test if a token has already been used, except to spend it.

[0] https://news.ycombinator.com/item?id=45523550