TIP: If someone is begging, particularly low level, and you feel inclined to give them money, wait. Rightclick their character portrait and compare achievement points.

You may infact be handing over that hard-earned gold to someone with +10k achievement points, that shouldn't be in need of actual begging.And if the person says that their main is on another server, I generally tell them to transfer pets.Or you can just /ignore them.