On Tue, 30 Jan 2007, Florian Straub wrote:
One idea for a consensus: Categories are no longer allowed to contain whitespaces or underscores :)
That simply wont work - most of the categories I deal with are related to railways, where many of them need multiple words because they are proper names - e.g. [[category:First Great Western]], [[category:London Underground]], [[category:British Rail Class 153]]