> What do you think, Raymond

Before dismissing this, we should get a better understanding of why "Accept: */*" is so widely used in practice.

Here's what we know so far:
* The header made a difference to the Facebook Graph API.
* Curl (a minimalist) includes "Accept: */*", Host, and User-Agent.
* Firefox includes "*/*" at the end of its list of acceptable types.
* Kenneth Reitz's requests module uses "Accept: */*" by default.
* The poolmanager in urllib3 uses "Accept: */*" by default and has a comment that that and the "Host" header are both needed by proxies.
* I'm also seeing "Accept: */*" in book examples as well.  See https://books.google.com/books?id=fVuWayXLdYIC&pg=PA22 and http://doc.bonfire-project.eu/R1/api/example-session.html