Extension:DeleteUserPages

This extension lets users delete their own user pages and user talk pages. Two permissions are added (by default not granted to anyone) which control whether or not one can delete their own user page or their own subpages. This extension does not allow users to delete pages that are not their user page or subpages of their user page. The user does not need to be the author of the page to delete it, and can only delete if they would otherwise be allowed to edit that page.

Support
Extension support is handled via the MediaWiki Users forum. Requests on the talk page here are likely to be overlooked. Commercial support plans are available for purchase.