... von den - wohl nicht ganz unvoreingenommenen - Leuten bei Feedburner:

First of all, I think the primary justification often given for partial feeds - that it will drive higher clickthroughs back to the publisher's site - is off-base. As people subscribe to feeds, they subscribe to more feeds. And that means they're consuming more content, which means that each click out of the feed reader is taking the reader away from more content. In other words, feed reading is consumption-oriented, not transactionally focused. We've seen no evidence that excerpts on their own drive higher clickthroughs.

Würd ich aber trotzdem erstmal auch so sehen. Ich hab sogut wie gar keine gekürzten Feeds in meinem Reader, ausser so von 2-3 Leuten die ich einfach unbedingt lesen will, und die es anscheinend nicht hinbekommen, einen Volltext-Feed zu veröffentlichen.