…to protect the integrity of sites, such as in a case where you have a site with a license that you do not want other people stealing from or any other various situations.

Please read http://blog.wikidot.com/blog:copyrights-and-licenses and discuss, because it's not as simple as blocking CSI. In many cases, the license on parts of sites requires that they be shareable. This particularly applies to templates that are reused from elsewhere, licensed under a CC license.

I'm not rejecting the idea of blocking CSIs but it has to be done within the context of understanding copyright and licensing issues.