I want to confirm that I have had this account for the specified time and the security question would prove that. (I know the answer, I just want an admin to confirm when it was set.)
Just to inform you incase you are not aware, if you are referring to the secret message, it is not advisable to activate it because once you used it to recover your account, it will be locked.
Also what kind of deal is it? Are you planning to let someone else have access to your account?
I want to confirm that I have had this account for the specified time and the security question would prove that. (I know the answer, I just want an admin to confirm when it was set.)
Only way to prove that the account is yours via staked message.
And to answer your question, yes admin can see changes in your settings such as password email and even secret message.