People are gangstalked for a number of reasons but this is pretty correct for most.
I remember being so happy when I had a term for what these actor/field ops people were doing.
We later found ads for people to make $16/hr doing this street theater as a part of a security activity.
Gangstalking is difficult because even though I have been part of psy ops and I know I am seeing it, I cannot clearly recognize it on the videos of others. In fact, there could even be an element of pitting TIs against each other so one TIs behavior will trigger another TI into believing something is happening when it is two TIs with opposite or different triggers/cues setting off each others warning system.