Well ! It was there once upon a time now it''s gone. Others seem to have it and others not whats the deal ?
Did you wish to add your DOB to your Detail page? If so, email me or send Conversation and I'll give you step by step instructions.
Identity theft is a good reason NOT to post your DOB. Your DOD will be made Public when you become a silent key.
I believe they ask for it when establishing an account, but you can hide it. Since they're not asking for any validation in the form of a DL or what have you, I wouldn't be surprised if a lot of people lie.