You read the article? The first thing he does is call POX "level 0" and "the swamp". Generally, real http APIs from companies like Amazon, Flickr, Twitter,

You read the article? The first thing he does is call POX "level 0" and "the swamp". Generally, real http APIs from companies like Amazon, Flickr, Twitter, etc. are POX-RPC APIs, the idea is that you're exposing operations, not data structures. REST is a castles-in-the-air exercise in exploring the dark corners of the http specification and exposing data directly instead of exposing operations on the data.