Perhaps I would feel differently if I lived in a place like Iran, but I see little reason to participate in a community where everyone hides their identity. It encourages too much bad behavior. That's one reason I (and everyone else) abandoned MySpace and moved to Facebook.

To convict under this statute, the state would have to prove that she intended to scare people, not just that she was clueless about how they would react.

http://www.mass.gov/legis/laws/mgl/266-102a.5.htm
Section 102A1/2. (a) Whoever possesses, transports, uses or places or causes another to knowingly or unknowingly possess, transport, use or place any hoax device or hoax substance with the intent to cause anxiety, unrest, fear or personal discomfort to any person or group of persons shall be punished by imprisonment in a house of correction for not more than two and one-half years or by imprisonment in the state prison for not more than five years or by a fine of not more than $5,000, or by both such fine and imprisonment.
(b) For the purposes of this section, the term "hoax device" shall mean any device that would cause a person reasonably to believe that such device is an infernal machine. For the purposes of this section, the term "infernal machine" shall mean any device for endangering life or doing unusual damage to property, or both, by fire or explosion, whether or not contrived to ignite or explode automatically. For the purposes of this section, the words "hoax substance" shall mean any substance that would cause a person reasonably to believe that such substance is a harmful chemical or biological agent, a poison, a harmful radioactive substance or any other substance for causing serious bodily injury, endangering life or doing unusual damage to property, or both.