[Request from improvement] Better namespace handling on System.ServiceModel.Syndication

I'm currently toying with using ASP.NET for an RSS reader project. I want to handle extensions and namespaces as well as enclosures. `ElementExtensions` exists, but it's a bit cumbersome to use and the typing requires a lot of manual casting (i.e. transforming from a string or XElement to something that can contain the information in that extension well). I would love for enclosures as well as the most popular extensions (mediarss, dublin core, itunes, etc.) to be more directly supported by System.ServiceModel.Syndication. I'm still new to .NET but I would like to contribute to this improvement if I am able to. Would these features be too outside the scope of what this package is meant to handle or is this a possibility?