Page blanking means editing a page so as to leave it completely blank, or without any substantial content.
Page blanking is acceptable in one's own userspace (but use {{}}
if you want to have such a page permanently deleted). However, some currently active administrative notices may not be blanked (See WP:BLANKING). For blanking of inappropriate content in other editors' userspace, see the section on fixing other users' pages in the userpage guideline.
If the substantial content of a page has been incorporated into that of another, then the first page can be blanked and replaced with a redirect to the second page. For a description of this process, see Merging.
Repeated, unnecessary page blanking may get a user blocked indefinitely.
To warn users about inappropriate blanking, use {{subst:uw-blank}} or {{subst:blank}}.