I never knew all that... But yeah, if you steal/claim artwork in real life, you could definitely get sued and get in huge trouble. There's an easy way to avoid stealing though, which is to put a watermark on your art. But a lot of ignorant people still steal art even with a watermark - . - Sometimes art without a watermark can get stolen, and the thief can make a watermark on the art so people would think he/she was the one who made it. That's even worse...