On facebook, I can munge my birthday in several ways. I can provide good data and configure my settings so that nobody can see it. Alternatively, I can provide bad data and open it up to the world to draw their own conclusions.
The second choice does change my user experience in one way:
free razors for women 50-65
50-65! if I were you I’d be totally insulted. You have the legs of, at most, a 55 year old.
paul
funny!