Any breaking changes to this template, including moving it or nominating it for deletion, must be communicated in advance to Twinkle's users and maintainers at Wikipedia talk:Twinkle. The standard installation of Twinkle relies on this template. Thank you.
This is not a critical maintenance template. Special:UncategorizedPages automatically collects all uncategorized articles, whether they have this template or not. The list is usually quite short; at any given point in time, perhaps one out of each million articles is missing categories.
This template has the most potential for being useful when both the article and the main editor are new. Experienced editors rarely forget to add categories (so adding it is a waste of everyone's time and energy), and if the page was created more than a day or two ago, then the problem is usually vandalism or accidental blanking of the lower part of the article.
Usage
It is recommended that this template be placed at the bottom of the page, where readers will look for the categories, although it is a somewhat common practice among some editors to put it at the top.
If you forgot to add the date, a bot will add it later.
When used on a page with a stub category a note that stub categories do not count for the purposes of this template is added. This can be overridden by setting |stub= to yes or no.