Why wouldn't we? Those are the effect of web people not understanding the law. It doesn't matter whether the law is written by a more international alliance, they would still misunderstand it.
Another example: in the hey-day of the Web, a German court ruled that you cannot escape liability for slanderous statements on another web site you linked to, just by writing a disclaimer notice on your web site.
Because in that case the author had clearly endorsed it in many, many words, and the disclaimer was obviously not meant seriously.
From then on you could find the "the court has ruled that I'm responsible for linked content, unless I'm adding this disclaimer" notices everywhere. Including other courts' web pages.
Although the ruling was exactly opposite. People just copied and pasted this magic formula that would keep them out of trouble.
Or see the recent Instagram hoax, where you had to post some boilerplate text, in order to keep the rights to your content. Well-known celebrities fell for it.
People are stupid, they go with the flow, and they will get legal stuff wrong.