Why No RSS Image?

A new member of the AmphetaDesk discussion list asked why AmphetaDesk doesn't display the RSS feed's channel <image>. My response was a two-parter (which also explained how to enable the display), but only this is worth mentioning:

Two, myself, I'm not a fan of 'em all that much. I'm of the opinion that an RSS feed and the data within are a) what people want to see - why else would they be using an aggregator?, and b) the chief determination for "character" of an RSS feed. An image/logo (ie. a visual representation of the site, much like the HTML design that RSS deigns to remove) doesn't contribute to those ends - it's not how you say it, it's what you say.