It seems to me, that this seller is really one of the more ethical farmers around. The rabbits are not dying simply for their fur/heads. The meat and everything else is also being used. This seller is much more ethical than the farmers that produced the packages of hamburger meat sold at Walmart, yet I see no one boycotting Walmart. If you are going to boycott... boycott the companies who operate the commercial feed lots. They are the ones who are abusing animals.
From fibersall's page:
"Most of the things offered here come from a very special corner of the earth. All the animals who dwell here are our friends, and are given the most pleasant life we can manage, no matter how long or short their stay. Breeding animals usually stay their entire life, and are family with us. Your purchases help to support them, so that we might continue to share our lives and land with them in the most pleasant atmosphere for us all. We are not vegetarian, but not only are we determined to end life humanely, we also try to honor it by making use of as much as possible.
I hope you enjoy what they, and I, offer."