<i>when someone rips off a webpage design or posts blogspam instead of linking to the original source. Please explain how this is different?</i><p>Sure it's copyright infringement, but the sin we're crying bloody murder about is <i>PLAGIARISM</i><p>It's the whole point of the BSD license: you can't pass off this source code as yours. In the original license with the advertising clause that applied to object code as well.