Ideally everyone should vote for the witness that is the most reliable and technically sound. The reality is people will vote for an inferior witness if they know that the person behind it is also concerned about the social aspect of the network. Witness voting may also be influenced by those who feel they have been wronged and seek some form of retribution no matter how small. Witnesses need to be concerned with more than just the technical side of things. I think the role of witnesses really need to be looked at more, to make sure they are good for all parties concerned.