RSS feed validator - no relative image links

Tonight, while working with a new RSS aggregator in beta called SearchFox I noticed that some of our feeds wouldn’t add because of feed validation errors. On closer inspection I discovered it was because we are using relative links for some of our images. The feed will still validate using the Feed Validator but an error will display that irritates SearchFox because of not using full paths.

I wonder how many other RSS aggregators and RSS search will ignore feeds based on this?

Bottom line for publishers, bloggers and the like: always use full paths.