I could be wrong, but aren't there heads on the character customization page with shades/eyepieces? Why do they need to be hats in the first place, if technically a pair of glasses is not the same thing as a hat? I think the creativity of hats has gone overboard and included too much in the realm of head wear...
Although, a rule is a rule, and I have no say in what the rules may be. I may oppose this limitation, but we all must accept it in the end. This includes the people in the pictures Rezon posts. If one person is punished for breaking a rule, everyone else making the same infraction should be punished as well. Otherwise it just isn't fair.