[kiitos]

> Web of trust protocols are a decades-long solved problem

Solved in a technical sense, maybe, but not in any meaningful sense. Statistically zero people use any web-of-trust based system for anything useful.

But we've already played this game, over the last couple of thousand years. That evolutionary process, however messy it may have been, has already produced a web of trust, to which we all delegate authority and responsibility. It's usually called "government".