Thread:Vandraedha/@comment-4011511-20121208222339/@comment-409884-20121209030716

Categories are just ways to group similar pages together. FarmVilleFreak calls them Tags on its pages.

All pages with the same Category/Tag/Groupings are listed together on the Category page with those specific tags.

You can change a category (if it is wrong) and nothing will happen to the page other than it will no long show up in the old category and will now show up in the new category.