Can't it be both? A grassroots conspiracy? Just because a smallish-yet-largish (hundreds? thousands?) community of people has got together and decided to show their support for a particular candidate by overparticipating in online polls and social news sites doesn't mean that there's anybody organizing these people.
Of course they must be exchanging information somehow, but it doesn't look to me like anybody in particular is in charge.
Of course they must be exchanging information somehow, but it doesn't look to me like anybody in particular is in charge.