This is a maintenance 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. 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 because a CheckUser has confirmed that the account's operator has repeatedly used sockpuppet accounts to evade an indefinite block. Users are considered banned in this way if and only if CheckUser findings are documented on Wikipedia; users who are blocked for sockpuppetry based on behavioural evidence alone should not be included in this category. For more information see this discussion.