Dark Tactic:

This one makes me sick to my stomach.

Imagine some horrible person wants to start a cult. So they get a bunch of people together and survey them asking things like:

"I don't think that cults are a good thing." "I'm not completely sure that (horrible person) would be a good cult leader."

and switches them with:

"I think that cults are a good thing." "I'm completely sure that (horrible person) would be a good cult leader."

And the horrible person shows the whole room the results of the second set of questions, showing that there's a consensus that cults are a good thing and most people are completely sure that (horrible person) would be a good cult leader.

Then the horrible person asks individuals to support their conclusions about why cults are a good thing and why they would be a good leader.

Then the horrible person starts asking for donations and commitments, etc.

Who do we tell about these things? They have organizations for reporting security vulnerabilities for computer systems so the professionals get them... where do you report security vulnerabilities for the human mind?