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I was looking at my Impact rating on Arqade earlier, and I noticed that it had reached 945K. Excited, I waited a few hours to see if it was climbing at a steady rate, only to find it had gone back down to 944K.
I don't have a screenshot to prove this, but I'm almost certain that it was 945K earlier. I know this is a new metric for SE, but is it possible for it to go down over time? It says it's based on upvotes and question views, but neither of those went down between the time I saw the 945K and the time it went back to 944k.