Give me a metric, and I'll change it for the better. The problem is give me the wrong metric, or one that is incomplete, and don't blame me when I chase down the less important work.
This actually happened to me recently. I heard one thing and thought that meant this one metric was the most important. Some time later from a different source, I heard that it was inappropriate to focus on just that one metric. This is the kind of conflict that gives me stress that I take to my personal life.
Any work, even and maybe especially volunteer, comes with a variety of priorities. Choosing which ones are actually most important is a delicate task.