Template:Blocked user/doc

Categories
If no parameter is provided, the template will add the page to Category:Blocked users. If the "historical" parameter is used, the page will be added to Category:Blocked historical users instead. If the "ip" parameter is used and no "time=" parameter is specified, the page will be added to Category:Indefinitely blocked IP addresses. If the "ip" parameter is used in conjunction with the "time=" parameter, the page will appear in no category.