Comment by martin-t

> One pillar is alignment of values, and therefore intent. The other pillar is competence.

That's a good point.

> If we voted with {+1, +0.5, -0.5, 0, 0, 0...} weights, without duplication of non-zero values

Are you describing range/score voting?

I don't think avoiding duplicated values is necessary but it's pretty well known that score voting is the best system: https://rangevoting.org/

See the diagram at the bottom of the page describing voter regrets. Everybody at least somewhat interested in voting systems would prefer this, especially over plurality/FPTP which is the stupidest system possible. But a lot of people are clueless or willingly supporting a broken system.

There's also an explorable explanation by Nicky Case: https://ncase.me/ballot/

Sidenote: the fact you need to explain that expressing more information in one vote is still one vote shows how clueless people are. Obviously every vote has the same power to influence the result but some people will try to wear you down through misunderstood technicalities.