An article is said to be "under protection" when administrators restrict the kind of access other editors have to it. The vast majority of pages on this wiki — indeed, on any wiki — are not protected in any way. Anyone, regardless of whether they have an account here, can change the content of most pages. This freedom is one of the central philosophies of wiki editing. However, there are some pages which are so fundamental to the coherent organisation of this wiki, that administrators must defend them against frivolous editing, such as spamming or vandalism. Thus, you may occasionally run into pages which have either been protected (sometimes called semi-protected ) or locked (sometimes called fully protected).