The date in the snapshot pop-up doesn't represent the current date where the red line is. I observed, that the date is related to the first line, Author in the screenshot. When the reputation points for the first line change, the date changes too. The expectation is, that the At date represents the position of the red line or at least the latest change in any reputation type.
The world is moving so fast these days that the man who says it can't be done is generally interrupted by someone doing it. (Elbert Hubbard)