I don't think it would be a good idea for this feature if it were to be considered. Why would you need to look up four year old subs anyway? Once your question has been answered, you look at the answer, and then you leave it. You don't need to look at the answer twice if you already know what it says. And plus, if you submit a hint, cheat, walkthrough, or whatever you really don't need to find them so you can follow your own advice.
Anyone is welcome to use some of my
stocks.