How to interpret the bad decision metric

Of all of the metrics I have introduced this season, the one that has received the most scrutiny is the bad decision metric. Every time I write an article about bad decisions, I receive a number of e-mails from fans questioning the validity of the bad decision metric. I have covered the basics of this metric in multiple articles but, despite this, it seems there are some things that are still misunderstood about it.

All of the questions I receive center around four themes. I'll enumerate the themes below and then give some clarification for each.

1. Bad decisions are subjective.