tactical error is GOOD, because it donates more utility to society than that non-strategic voter loses. AND for a lot of not-so-math-savvy voters, an honest score ballot is actually a better vote than a botched attempt to use strategic approval thresholds.

http://scorevoting.net/RVstrat6

https://www.rangevoting.org/ShExpRes

> It is never correct to assign a score between the minimum and the maximum, so why allow it in the first place?

it would help you to spend at least 30 seconds researching a complex field like voting methods before asking a deeply misguided question like this.