Stealing things like the Mona Lisa or other ancient art works to sell them to private collectors for cash was one of the most lucrative jobs for accomplished thieves up to the last century.
Then we moved to copying other people’s art for profit (aka Rob Grandito). Forgery and scams were sure cash cows.
Now, we’ve moved to hosting other people’s webcomics on our websites for advertising cash. I’m not sure how we’d stop it from happening, but it’s rather rampant right now. I know the dude from The Oatmeal is in a life-or-death struggle with Funnyjunk over the Internet. Funnyjunk has resorted to asking it’s people to spam the artist’s Facebook with 8 year-old comments (calling him a fag/faggot). This is very childish behavior, and the Internet should go over to Funnyjunk and DDoS it to death.
I hate this shitty dismissive behavior that people seem to be exhibiting lately. Nothing is free, idiots.