Funny how you say that the visas are not illegal. That the Chinese government changes it's policies and that best learning adapts accordingly. First off, if you work in China (teaching) on a F or L visa or student visa, that's Illegal. Secondly, it's a requirement to have at least two years working experience in order to get the proper temporary residence permit. Do any foreigners know how to report these companies? I know no one really cares, but I hope there comes a time when a foreigner can actually take these companies to the cleaners for illegal activities. Which in theory you can do with the proper permit (working visa) but good luck with that also.