Board Thread:Support Requests - Getting Technical/@comment-5716479-20130603204221/@comment-1158325-20130604201149

Not that I know of, but you could hide it with CSS (class="sharedHelp").

Ah, yep, those are all MediaWiki pages. Usually you can find the page name in the code. Text for non-existing pages is "noarticletext" and the upload page is "uploadtext". Common edit summaries is a custom script.