Here are some examples of "other software" that does compute this.
Mbin still reports the raw reputation score, e.g. https://fedia.io/u/@[email protected]
Piefed instead reports an attitude percentage, e.g. https://piefed.social/u/[email protected]
Both do so without requiring an account.
I don't get it. He was okay with endorsing Biden back in 2020 after taking ownership in 2018. So why skip the endorsement now?