Help:Why was the page I created deleted?

The pages on this wiki are a collaborative work. Editors work hard to improve pages and have them retain a standard of quality. Since each additional page adds more work for the community, we cannot let all pages be included in the content namespaces. Our policies define an inclusion criterion which, in the content namespaces (the main namespace, along with the Community, Class and Catalog namespaces), is determined by the notability policy.

This policy allows for any page to be included in the content namespaces when there is consensus among editors that its topic is notable, but in most cases, whether a subject is notable or not is determined by a number of criteria defined by the notability policy. Most deleted pages are about groups, users and places; the criteria that apply to those are as follows.

If a page you created was deleted, or, as is more common, moved to the user namespace (in which case its name will begin with “User:” followed by your user name), where the inclusion criteria is not determined by the notability policy, it is probably because it was not meeting the criteria above. If it was deleted but has useful content that you would like to get back so that you can contribute to it in your user space, you can ask the administrator who deleted it to restore it and move it there. Note that pages in the user namespace should always be subpages of an user's user page, except the page describing that user himself. If you think the administrator who moved or deleted the page made a mistake, you can contact them on their message wall.

In the case you believe the subject is notable even though it doesn't meet the base criteria, you can start a thread on the wiki discussion forum board and attempt to get other editors to agree with you. You can also start a thread on that board if you have questions about the policies, or need technical help.