It is used to build and maintain lists of pages—primarily for the sake of the lists themselves and their use in article and category maintenance. They are not part of the encyclopedia's categorization scheme.
These categories are 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).
Administrators: Please do not delete this category even if it is empty! This category may be empty occasionally or even most of the time.
If this category has 20000 items or more, it will report as a backlog. (recount)
Script error: No such module "Large category TOC".
This category is automatically populated when an article includes an infobox without any parameters being set in the infobox. Be aware that:
Some templates use the general template {{infobox}} but are not named "Infobox ...", so a template with no values may also add an article to this category.
Some of the more complicated infoboxes are defined using "child" syntax in their source. If one or more of the parts of the infobox defined as children is/are empty, then the article is added to this category, even though the infobox has values for some parameters.
