I have often thought that, with only a few cosmetic changes, the Mudcat format could work equally well as a gardening forum, politics forum, cooking forum, whatever. Imagine that instead of DigiTrad, there was a collection of information about garden plants, for example. You could call it DigiPlant.Works for me!
Of course I'm thinking of something totally separate from the Mudcat Cafe: something installed on a different server (or maybe even the same server), having a different web address, and a superficially different appearance, but having the same software to make it run.