its not cheating. his exp is on. was in a bg last with him and he is now level 72. its a game mechanic that blizz created to stop speed leveling. imo it’s brilliant and clever use of mechanics.
step one-get in group with xp locked player.
next- enter an instance
then- leave group
which part is an exploit ot cheat? blizzard added the DEBUFF to stop level boosting. using the same debuff to gain less xp is hurting you how while you soak up free xp?
sounds like you don’t like people who optimize gear and enchants. Just because they take time to slow down and enjoy the game you have to cry. get good