This is an administrative category, used for maintenance of the Wikipedia project. It is not part of the encyclopedia and contains non-article pages, or groups articles by status rather than subject. Do not include this category in content categories (except for eponymous maintenance categories).

This is a tracking category. It builds and maintains a list of pages primarily for the sake of the list itself. They are not part of the encyclopedia's categorization scheme.

• This category is hidden on its member pages—unless the corresponding user preference (Appearance → Show hidden categories) is set.
• These categories can be used to track, build and organize lists of pages needing "attention en masse" (for example, pages using deprecated syntax), or that may need to be edited at someone's earliest convenience.
• These categories also serve to aggregate members of several lists or sub-categories into a larger, more efficient list (discriminated by classifications).

This category is for accounts that have been banned by decision of the Arbitration Committee, the Wikimedia Foundation, or community consensus. A "ban" is distinct from a "block". Although blocks are enacted to enforce bans, they are also used in many other situations. Users blocked for simple vandalism, sockpuppetry and the like should not be categorized here. A related page is Wikipedia:Long-term abuse, describing users that continually vandalize or disrupt Wikipedia.