[Freesteyelz]

Sean S made the perfect point.

First, you'll need to track the sites which illegally removed the copyright notice to even consider pursuing action or claim against it. Secondly, you're assuming that anyone who downloads your (free) styles will honor the free-branding clause. Third, those who've already downloaded your (free) styles is a matter of after-fact. Fourth, while the $1 is an example it's not worth a person to make the effort to pay; some will but most won't bother.

I hear you Infantrymen but to me the reasonable solution is to release the styles you wish to protect as "paid" releases. Charge $5 or whatever the amount you see fit. Plus, for the customers who paid they will be documented. You can require them to give you the URL in which the Style will be placed. You'll have options.