Define thieves
And while I'm not a prude I think all the porn sites should be buried back underground where it belongs, it's too free & accessible for kids to peruse.
In an online capacity, generally those who's website business revenue generation model revolves around knowingly redistributing or inciting others to redistribute other peoples work without their permission. It doesn't take a genius to realize that that websites operating this business model are shady as shit behind the scenes (amongst many example, think almost every filelocker, sharing forum, torrent site or tube site).