I have found that since I am monitering my chart regularly that occasionally a number will decrease or in the case where I have only found one in that square, I lose credit for it. I know it's not because of a deleted logs. Are these numbers effected by archived caches or is it because an owner changes the rating on the cache?
After doing a little investigative math I discovered that it is definitely because of owners changing the rating on the cache. I can the need to do this but it sure messes with my fizzy challange efforts.