I did that for a while as well. I started with full feeds and then found myself curious about who my readers were. So, I added SiteMeter to my blog to track traffic. Then I realized that very few people who subscribe to my blog actually go to the blog - they stay in their RSS Reader. Ah, so to fix that I decided to change my feed to a partial feed so you only get the first paragraph.
What I've learned since:
- Partial feeds are annoying as a blog reader, so I was being annoying providing a partial feed.
- Google only indexes Blogger's feed (not the blog itself) - so search is terrible on blogs with partial feeds.
- And, most interesting, when I switched back to full feeds, I didn't really see much traffic change. Readers rarely click through to the blog post in either case.
Bottom line: I would highly encourage anyone with a blog to provide a full feed.
I'd be curious if I've missed something here or if anyone who's providing a partial feed can convince me why they shouldn't provide a full feed.
Later maybe I'll start naming names.