This type of player usually has a very sharp and clear hate against PVE and PVE Heroes, mainly because he's absolutely worthless in PVE, yet he claims it's "very easy and anyone can do it".
A simple summary is a player who deliberately blocks out 50% of the game because he's incapable of the other half.
See PVE Hero for the exact opposite.
PVP Hero: *misses an interrupt*
PVE Hero: "wtf?"
PVP Hero: "I thought he was going to fake cast"
PVE Hero: facepalm