It isn't harmfull at all to us, the dogs, ferrets or whatever you feed them to, once prepared it just looks like any other rabbit prepared, just a lot less meat on them.
Most people don't eat myxi rabbits because they don't like the way they look, and it puts them off and thats fair enough, me on the other hand think thats a waste of an animal and threfore if I don't eat it, then the ferrets will.
JoeD