I have just been mailed with someone with reference to the job opening I posted on Jan 12, which confused me a bit as I didn't remember posting anything recently, so I went looking for it, and I did indeed post a job opening on Jan 12. 2011 (I think) It says on the front screen that it was two years ago, but looking at the post itself, there is no year against the date.
I think knowing the age of the information you are looking at would be useful surely.