I sent an email to Bloglines a while back on this request, but they're not very good at letting people know what they think of their ideas, so I figured I'd post it here, too. Basically, I don't like the layout Bloglines uses for its feeds. The layout isn't horrible, but it could be better. I'd like to have the ability to use my own custom XSL file to render feeds. Furthermore, it'd be nice to be able to choose from a user-submitted, Bloglines-managed gallery of XSL files. Sure, having a gallery would be more of a pain, but I think Bloglines users would love the feature.