Show related items on feed items

Please consider this a suggestion: feed items don't act like folders, and can be usefully related to other site content, so let's display related items. 
(Context: we use [simserver](http://github.com/collective/collective.simserver.core) to generate a list of related items upon creation.)

I was a bit puzzled that feedfeeder doesn't just use normal Archetypes rendering which would include related items.