This is Anonymous. Addressing the public at large, and also fellow members of Anonymous.
Dictionary definition of:
Act of terrorism.
Noun. The calculated use of violence (or the threat of violence) against civilians in order to attain goals that are political or religious or ideological in nature. This is done through intimidation or coercion or instilling fear.
I will break this down to you to further explain what it means.
Calculated uses of violence may include drowning someone in a bathtub, leaving someone to starve to death alone for half a month. Driving someone to insanity to the point of suicide. Depriving someone of needed medication, thus causing their mental condition to deteriorate to the point that they murder a beloved family member.
Verb: To make timid; fill with fear.
This includes, but is not limited to: Harassment and threatening behaviour. Following people and documenting their every move. Shouting obscenities at them when they arrive in public places like airports, bus