A company can always document their API if they want power users to be informed about the company's preferred ways of doing things. They generally don't because

A company can always document their API if they want power users to be informed about the company's preferred ways of doing things. They generally don't because they want to create a bunch of market friction so you're forced into using their proprietary client apps to interact with their services. I for one applaud efforts like the original post, and think it's an instance of outstanding Internet citizenship, where citizenship means working to preserve Internet societal norms like decentralization.