A contract is only good if it is enforceable. If you order from China through something like alibaba, you have zero enforcement capacity. The only hope you have is that they will honor their contracts so people willl keep doing business with them. But there's plenty of examples of that not happening so it's pretty stupid to rely on it for a big order ('big' being defined by how much you can afford to lose).
You can speak in the second person to emphasize a point even if the audience isn't the specific target. It's a writing style; sorry if it offended you.