Back in 2007 just a few days after it came out, I added a "shout" to Reyn's remix. Today I have not touched my shout, but I added a review to it - and the review shows up with the date of my original shout (05/12/2007):
I am guessing only a single date is stored in the DB for a shout + review. It's a minor issue, but it would be nice to have separate dates for the shouts and the reviews, especially since I'm planning to add even more "retrospective" reviews like this.