Ladies, why don't you cut the tags of your bras and panties?

I notice in many photos and in real-life (believe it or not!) that women rarely remove the tags from the back of their bras and panties. Is there a reason for this?

Be they see-thru or regular, the sexiest undies with a white tag can spoil the 'image' and make them seem much less sexy.

Here's an example posted today: http://www.reddit.com/r/nsfw/comments/e0fp0/this_is_going_to_be_a_good_day/

Sexy as all-get, but then there's that silly white tage ruining the lines, and breaking up the silky curves. When it dangles from the back of a bra (oftne noticeable through a shirt), it's just as bad.

Anyone able to give me an answer? It's bugged me for years, but not enough to bring it up when a women has been undressing for/with me.

edit: I appreciate the replies that were serious. I don't understand what offended some of you so much. But c'est la vie. It's the Internet.