Superusers, and room owners can delete a room, but any users who are not room members cannot delete a room, even if they have DELETE permission.
Choose one of the following options:
Delete just the link to [room name] (default choice).
Delete the room, including its member list and local groups, and all links to it. In this case, you must pick between deleting just the current version or all versions.
If you delete the last remaining link to a room, you are deleting the room, and must decide whether to:
Delete the room, its member list, and its local groups (default choice). This action succeeds only if the home page has no links, not even hidden links to old versions, which also implies the room no longer governs anything.
Delete the room, its member list, its local groups, and all sub-folders and objects. In this case, decide whether to:
Delete current versions of linked objects (default choice)
This option begins by deleting the current version of every linked object. The deletion stops, however, if the home page, and sub-folders still contain links to other versions of any of those objects, even hidden links to old versions. To be entirely deleted, the room must not have any links (not even hidden ones) to non-current versions of objects.
Delete all versions of linked objects
If you are deleting multiple objects, the deletion dialog box has multiple pages with the above choices for any room that needs it.