Sam Ruby wrote:
Interoperability will be improved if we can nail down what are valid media types that atom feeds can be served with, and what are invalid media types that should always be rejected.
We can build voluntary conformance test suites for aggregator developers to test against.
The feedvalidator can provide feedback to content producers.
The charter does include "clearly nominating conformance levels for different types of software". A short I-D or appendix on serving Atom feeds over HTTP would probably make a good product for this WG. I bet you could write it pretty quickly.
Robert Sayre