It's because you look so cool with your enhanced armors And weaons of godly destruction. they wanna be like that. Like little kids that see the big kids drive up to school wit the cool clothes & the hot babes lol
Well you can always block them, and if they are still annoying,
say ok and go with them to a pvp area and kill them.
They will be tired after some time too, if nothing works.
I have them all the time :O