Pages should be moved into a namespace if it becomes a namespace. Hacks to try to mask that only add complexity. For me the current implementation makes keeping a consistently organized wiki more difficult.
The whole namespace, start page, page with same name as namespace (inside or outside of the namespace), etc is a mess... It isn't intuitive, and simply makes for confusion. Please at least make it an option to allow a strict content structure for people who like to be organized. Leave it as is for the default adhoc guesswork confusion, but an option for enforcing a structure would be just wonderful. See also FS#1248