Yahoo zapped the Crux group in 2005 I believe. I had the membership info backed up, and I used that to create another Yahoo group called "Cross Purposes" which was just a holding group to keep members informed of our progress towards a replacement site - no pictures and no posts that would attract negative attention from Yahoo.
The admins/moderators of Crux, seven of us, selected the software, got a hosting service, and created the Crux Foundation. When it was ready for prime time, I sent invitations to our membership to join. And Crux was history. I suppose Yahoo believed that our subject matter was over-the-top offensive on several levels, obscenity, violence to women, and then the religious aspect. It wasn't easy to find a hosting service that would host the Crux Foundation site, either, due to the content.