@Jack-Waugh are you referring to my system as shiny or are you talking to @rob, or both of us, or speaking generally? Not impassioned here, but I’m definitely happy with SP Voting on a theoretical level and also believe it could be implemented in a way that is almost as simple and straightforward as Score or STAR. It definitely outperforms Score, I am certain of that, I can try to organize some simulations to convince you but I’m not that tech savvy or idle. I can send you the code and elaborate on it or share it publicly, etc. If large factions of the electorate consistently split-bullet vote, then split-bullet voted candidates become run-of-the mill noise to the system, and room is made in the middle for people who want to express their preferences with more nuance to be heard.
The theoretical backing of the system is superior to Score. I am not just saying that because I developed it, although I did develop it with that specific purpose in mind—I’m saying that because it is based first and foremost on the concept of a candidate being consensually evaluated on a global scale, rather than on a candidate locally amassing score points with arbitrarily assigned numerical values that gamify what is supposed to be a workable substitution for large-scale social agreement.
In SP Voting, a voter doesn’t know the quantitative value his ballot will contribute to the candidate, because that depends explicitly on how everybody else votes as well. In fact, in SP Voting, individual voters have no ability to add explicit points to the candidate’s score. Only the whole collective electorate can do that. They can certainly choose to form coalitions, or be bribed or what have you, but those broader issues aside there is never really any conflict of interest that the voter faces in casting his ballot, other than the question of how they should express their preferences using the ordinal scores. They know only that scores get better going from left to right, and the question of, for example, “How should I rate my second choice?” becomes totally subjective, as it should be.
Like I said, together with a STAR framework, I think it would be an excellent system. I don’t really care about eliminating voter regret or whatever, I think people will obviously feel dissatisfied to an extent because that’s always going to happen with a successful compromise, but obviously reducing it all else equal is a plus. It’s better to evaporate and spread voter dissatisfaction thin than to let it conglomerate into angry mobs (especially two big Red and Blue ones) that can be easily manipulated by opportunistic parasiticians (am I saying that right?). The STAR framework seems to reduce voter regret and encourage honest preference indication on ballots, which I do believe to be indicative of compromise.