Hey Abu,
Welcome back. Long time no see.
And you're absolutely right...encouraging people to buy a bogus degree or work illegally in China isn't exactly what we like to see on The Saloon. I spend a lot of time, here and elsewhere, advocating legal employment status as the only way to go.
There's no excuse for not having a Residence Permit. None.
The only mitigating factor I can say for buying a degree is that 99.8% of the schools in China are even more bogus and dishonest than a mail-order diploma.
Still doesn't mean we should advocate such a thing, though.