Stories on 'sweatshops', cheap Chinese working in virtual worlds, have been around for a while. 1UP did some field research, which resulted in an interesting read.
"For all the so-called virtual sweatshops discovered, a lot of these young men and boys don't mind their jobs, and they aren't exactly working in sweatshop conditions. There's a world of difference between making sneakers and watching bots fight all day. However, they are underpaid, or as Smooth Criminal puts it, "They get paid dirt. But dirt is good where they live."