There are several successful shared witness accounts. FollowBTCNews is one. Curie is another. Curie is a large group who have all pooled resources. Server requirements are becoming so steep that I have a feeling you will see more and more witness partnerships form just to keep the blockchain running.

There's no way to know if our endeavor will work. Some things you just don't know until you try. The goal is to try and do as much good for the platform as we can. We know the risks. We also know the good that will come from this if we succeed.