Thread:Project:Support desk/Annoations only visible for internal use/reply

Mediawiki is inherently bad at "hiding" stuff. See Manual:Preventing access. MediaWiki is not designed for your usage. (See bug 1924.) Data is not necessarily clearly delineated by namespace, page name, or other criteria, and there are a lot of leaks you'll have to plug if you want to make it so (see security issues with authorization extensions for a sample). Other wiki software may be more suitable for your purpose. You have been warned. If you must use MediaWiki, there are two basic possibilities which are delineated at that link.