zlacker

To me the "web of trust" element frankly seems like the only viable solution. And in fact, its almost here already: https://playsafeid.com/

I predict that hacker news in particular will dislike using facial recognition technology to allow for permanent ban-hammers, but frankly this neatly solves 95% of the problem in a simple, intuitive way. Frankly, the approach has the capacity to revitalize entire genres, and theres lots of cool stuff you could potentially implement when you can guarantee that one account = one person.