Yeah, I have the same question about the free WordPress themes. Usually, we use to optimize our site on the freely available nulled themes online which is not a big deal, but recently we asked and contacted a responsive web designing service in Pakistan for our hotel site to make up that site on Chicago theme. But that agency refused to design and said that cuz of copyright issues. They don’t use to copy ideas from online. Are they right? is it really a serious issue to use a nulled theme for your site.