Password Hint

During installation of Windows 7 there is one point where you get asked for password. Thing that did surprise me is the fact that it requires password hint to be filled. While I do see use and benefit of it, especially for accounts that are used only occasionally, I cannot understand why that hint was made required parameter.

Even worse, if you chose not to have password and add it only later, password hint is not mandatory any more. Seems like a little inconsistency to me.