Please don't make fun of people who want to help others in foreign countries; there are not many these days with the ultra-right movements re-appearing in many Western countries. The fact is that agencies like Wuhan Chinaexpat are taking advantage of newbies by not providing the right work visas, exposing the newbies to an unsavory variety of problems starting with not having legal recourses against their employer and ending with imprisonment and deportation. You seem to have a lot of experience in China and you can probably avoid most pitfalls, but it's not the case with everybody so please do not distract us from the main issue here.