Yes it it true, hunters can kill pesky beggars in town with little effort. In revealing this, I would like to ask any Blizzard employee reading this to not call up the devs and ask for a nerf. This is too much fun, we need this! And, as you know, us hunters are a mature and peaceful group. We would never misuse this. Honest.
Step 1.- Beggar asks for money.
Step 2.- Invite beggar to a group, he accepts and eagerly awaits his gold. You click "at war" with Cenarion Circle, throw a misdirect on the beggar, and shoot the lev 55 emissary in town. He gets pissed and takes it out on the beggar.
Step 3.- Dead beggar = win!
Drev would likely misdirect himself however :err: