The goals is to isolate the target from all forms of surpport, so that the target can be set up in the future for arrest, institutionalisation, or forced to suicide. Other goals of this harassment is to destroy the targets reputation and credibility, to make the target look crazy or unstable.
Other goals involve sensitizing the target to every day stimuli's as a form of control, which is used to control targets when they get out of line. Once the target is sensitized, the Citizen Informants have an easier time identifying the Targeted Individual in publics.
These programs are designed to make the targets of this harassment vulnerable, with the aim to make them destitute. The secondary goals seems to be to make the target homeless, jobless, enable a mental breakdown, and the primary goals seems to be to drive the target to forced suicide, just like what they did with some of the targets of Cointelpro. It's a useful way of eliminating percieved enemies of the states.