I was fine with it until I saw the "iced" word balloon on the Super Mario Bros strip. It didn't fit and all. It was like they just wanted to use it somewhere.
Also, the comics I looked at had minimal effort put into them. It's not so much that they used CBC that bugged me, it was the fact that they used it to put together a quick and easy webcomic.
I guess I'm just used to good webcomics with original art and well-written dialogue...