"My metric for metrics is to track things that will change your behavior. If a metric changes and you don't, then it's a pointless metric."

This is exactly what you are supposed to do in high-level RTS strategy. In Starcraft for example, you should know ahead of time what 'tells' you are looking for, and disregard the rest. It lets you focus only on the information that influences your decisions, and minimizes distractions from "scary" things the opponent may be doing.