These are MKUltra-style techniques. The basic idea is to track the persons habits and movements then put suggestive messages or even meme-type information in their path in order to fuck with the person.
They aren’t designed to “inject thoughts” into someone’s head or anything silly like that. The goal is to confuse the person to the point of panic, so that they become paranoid and irrational over time.
https://www.justice.gov/epstein/files/DataSet 11/EFTA02352235.pdf
“evil” what a construct.