I won't post my birthday just yet, because the person with the closest birthday to mine (in days) in the calender year will get "Most Helpful Opinion"(MHO.) If two people tie for the cloest to my birthday, I will use a tie-breaking procedure that I'm keeping a secret (Hint: Be careful how you answer.) But I doubt this will come down to a tie-breaker. If you don't post the month AND day you were born on, you won't get MHO no matter what.
I had my birthday listed in my profile, so anyone could have cheated ;)