this validator says that my RSS feed doesn't validate.
the link to "comments" should be a full URL and there's a "self" tag missing.
coming from this bug report
Fixed. Now people are going to complain that the RSS feed hard-codes
https:instead, but we can't win there, because RSS.
If you just want to serve a feed with less bureaucracy, I suggest using Atom feeds - they have sane semantics for relative URL references, and a specification that actually specifies, instead of a family of vague, mutually incompatible specifications. In particular, my Atom feed validates (rel="comments" seems to be missing from the IANA registry, but that isn't a validity error). --smcv