It will only be selectable in the Crufts season, then it will be switched off (so it doesn't clog on the list when posting threads for the rest of the year). However if any threads get started outside of the season, a mod will be able to put them in the Crufts category if need be
As Crufts is upon us, the category is live again - feel free to use it for any Crufts related threads
