Read through that last night - reason for categories, according to OP, was to target each group with different influences in attempt to sway opinions, at least that was my take away from it. Reason for wanting to be in the "Undetermined" bucket was to make it harder on those that want to influence opinions - the more people that they don't know what they think, the harder it will be to format their messaging. Probably a bunch of BS, IMO, but I'm keeping my eyes on nonetheless.