Xur is a great way for those who just reach lvl 20 to get their new gun and gear since they are ineligible to enter nightfall or raid. So back off. I personally love teaching new comers every secret and trick to reduce the stress of them having to grind over useless gear or guns. Stay out of pvp if you are going to complain. I'm no top notch in pvp but I still want to give the new ones a starting advantage.