This one time, at band camp, David Cantrell wrote:
Not true. There are place name clashes in at least the UK, Australia, South Africa, Germany, Switzerland and France that I am aware of.
Place name clashes that we have not, and in all likelyhood will not, encounter.
Perhaps you can suggest how we would name Croydon (Greater London) and Croydon (Cambridgeshire).
There's also one in Sydney, but like Croydon being in the London guide, is easily covered by the Sydney guide. Croydon (Cambridgeshire) is unlikely to ever need a guide, and could easily be covered by a South Cambridgeshire guide.
The kind of attitude that gets us overdesigned DNS heirarchies would also have a committee deciding the names of categories. It's just not very Wikish.
Which is in the Netherlands. The areas outlined in blue are Belgian enclaves. The area outlined in green are Dutch enclaves inside the Belgian enclaves.
See also Greater Lille, most of which is in Belgium.