Hear, hear …

… Anecdotal Evidence: 'I Learned Your World Order Then'.

Those who willingly, enthusiastically join mobs are already predisposed to their madness. They feed on the collective energy, become something that is not themselves, something stronger and more dangerous.

See Kierkegaard’s The Crowd is Untruth:

A crowd - not this or that, one now living or long dead, a crowd of the lowly or of nobles, of rich or poor, etc., but in its very concept ⁴ - is untruth, since a crowd either renders the single individual wholly unrepentant and irresponsible, or weakens his responsibility by making it a fraction of his decision. Observe, there was not a single soldier who dared lay a hand on Caius Marius; this was the truth. But given three or four women with the consciousness or idea of being a crowd, with a certain hope in the possibility that no one could definitely say who it was or who started it: then they had the courage for it; what untruth! The untruth is first that it is "the crowd," which does either what only the single individual in the crowd does, or in every case what each single individual does. For a crowd is an abstraction, which does not have hands; each single individual, on the other hand, normally has two hands, and when he, as a single individual, lays his two hands on Caius Marius, then it is the two hands of this single individual, not after all his neighbor's, even less - the crowd's, which has no hands. In the next place, the untruth is that the crowd had "the courage" for it, since never at any time was even the most cowardly of all single individuals so cowardly, as the crowd always is. For every single individual who escapes into the crowd, and thus flees in cowardice from being a single individual (who either had the courage to lay his hand on Caius Marius, or the courage to admit that he did not have it), contributes his share of cowardice to "the cowardice," which is: the crowd. Take the highest, think of Christ - and the whole human race, all human beings, which were ever born and ever will be born; the situation is the single individual, as an individual, in solitary surroundings alone with him; as a single individual he walks up to him and spits on him: the human being has never been born and never will be, who would have the courage or the impudence for it; this is the truth. But since they remain in a crowd, they have the courage for it - what frightening untruth.