I can't condone shooting people who publish partial-text feeds, but I feel Scoble's pain. Personally, I've unsubscribed from just about all partial-text feeds, with the exception of 1 or 2 sites that I absolutely must have and absolutely can't get elsewhere ( and usually a site doesn't stay in this category long - I either find a replacement or learn to live without it ).
What annoys me most are the short-sighted justifications like the response Robert got:
Currently our sites only provide excerpt feeds because we feel it is really important to get customers to our sites.
This is a clear example of someone who doesn't "get" RSS. After all, if you want customers to come - and come back - to your site, you need to keep us happy. Court us. Build a lasting relationship. I'm sure you would love to have me on your mailing list, but I'm not a floozy. I don't just give up my e-mail to anyone - you have to earn it. RSS is a "cheaper" way (in terms of what I need to give up) for me to continue the conversation. It's a way for you to reach me when I don't trust you enough - yet - to give you my e-mail.
My "relationship" with Engadget really illustrates this well. I used to read Gizmodo but switched over when Engadget first offered full-text feeds. Gizmodo has since added full-text feeds, but it was too late: at this point I consider myself a loyal Engadget reader. It's one of the few sites I will read when I don't have my aggregator. Even when I do, I still visit the site a lot to leave comments. I also link to them a lot, and while I may not have Scoble's 18,000 readers, I send some traffic your way - that should at least help make up for the "lost" visits from me, right? ( Oh, and unlike Robert, it's not that I actively refuse to link to sites with partial-text feeds - it's just hard to link when I've already unsubscribed and won't see your content ).
It's really very simple: RSS lets the customer control the conversation. In exchange for that control, we will gladly reward you with our loyalty - and we'll be happy doing it. But if you're going to do this, you can't do it half-assed - don't give us partial feeds!