In the email exchange I've had with Craig, not all of which I've posted, I've asked him to clarify on this point:
"Oh, and about being noncommercial. A bunch of the RSS mashup sites I've seen, like Craiglook, throw up advertising presumably to cover server costs or make a few bucks. If I didn't want to go that route, would asking for donations be acceptable ?"
In his response, he said he can ask. I said please do, and that was the end of it. So for CL to break things when there is absolutely no sign of commercial purpose is a little unnecessary in my eyes.