Theme forest sells themes for $59 each for a single domain. I plan to make multiple site but don't have the money to keep buying themes for new websites. Does anyone know how this works? I've read a bit about it and it seems that due to Wordpress being GPL that the themes should be too? Is it that big of a deal if i use the theme on different site or do they have some sort of tracking code within. Would really like to know as the themes on theme forest are nice but i don't want to pay every time i use the theme on a website. Thanks.