Think about it from a non-technical user's perspective: they click on a RSS link and get a wall of XML text. What are they going to do? Back button and move on. How are they ever going to get introduced to RSS and feed readers and such like?
I think a lot of feeds never get hit by a browser because there isn't a hyperlink to them. For example: HN has feeds, but no link in the HTML body, so I'm pretty confident they don't get browser hits. And no one who doesn't already know about feeds will ever use them.
I wouldn’t spend 5 minutes making that feed look pretty for browser users because no one will ever see it. I don’t know who these mythical visitors are who 1) know what RSS is and 2) want to look at it in Chrome or Safari or Firefox.
What about people who don't "1) Know what RSS is"???
And what if you could make it friendly for them in 4 minutes? You could by dropping in a XSLT file and adding a single line to the XML file. I bet you could do it in 3 minutes.