Original Posting Date

I know we list date and time when the last post on a topic was, but is there a way to display somewhere when the post was made? Maybe next to the Author in that column? Only reason I ask is mainly in the buy and sell and trade forums. I end up looking at the same ones over and over mostly due to people writing saying they received this or received that, and I never remember how new the original topic is/was. Does that make sense? Part of it is the common themes for subject line material, so sometimes they are hard to differentiate. Just a want and certainly not a need per say.

Maybe even request the posting person to put a date in the subject line?