There is a case for it one simply does not have the time to do manual curation (like me). I auto-vote several accounts and have no shame in doing it either, otherwise my VP would be rattling 100% too often and I don't want that.
I was auto-voting you for a while too..
As I have said a few times. I would rather active VP used in this way on decent accounts rather than going to bidbot pulls.
I wish everyone did. Less comments to answer :P