If an index is being touted and it's garbage it is harmful. (I have not formed an opinion on the index being assessed). The point being if it's extremely varia

If an index is being touted and it's garbage it is harmful. (I have not formed an opinion on the index being assessed). The point being if it's extremely variable it /will/ be gamed and will work against you. The circular arrow symbol on plastics is a recent example where poor definition of what it meant has even led to consumers believing a symbol indicating non-recyclable means recyclable. A superior indicator for consumers that would get vastly less wrong is "plastic is not recyclable." This or any index to provide information to consumers should be aggressively scrutinized. What it is today will not be what it becomes unless it can be defended, which requires thorough and widespread understanding.