Player A (level 90) attacks Player B (level 30)
Weird, I'm seeing Player vs Player.
Just because it's dishonorable and cowardly doesn't mean it's not PvP.
So goddamn stupid that people are complaining about getting killed on a realm that is supposed to allow such things. Guess that's what PvP turned into when the zones were dead, before CRZ. PvE realm leveling with some occasional pvp in Pandaria. Guess these are the one's who constantly cry in the Jade Forest general chat.
Roll PvE or deal with it.