But how would anyone make that distinction? You cant, and neither can Blizzard. "Base raping" or spawn camping is considered a "dick move" on many fps servers, but is not strictly against the rules of the game - so many servers (which in this case are "privately" run) make that a server rule.
If these were private servers, with admin who liked to swing the ban-hammer, they could make a rule like "you cannot kill the same player more than 5 times in a 10 minute period" or anything they liked, but thats not the situation here. The rules are clear, and i think anyone who doesnt like the challenge of escaping a gank/camp situation, or inflicting them on unsuspecting players themselves, really should look at a pve realm instead. Even if they enjoy pvp, they can flag themselves, or, engage in structured pvp such as bgs.
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By its very definition, yeah, it is Player Vs Player. Remember that - its PLAYER - not character. Wanna swap to a main and get some revenge? Still player vs player. Maybe utilize some of the AMAZING "classic community" and ask for help, from friends, your guild, or your faction. Considering how AMAZING the "classic community" is, i am confident you would be inundated with offers of help - you would have a raid in minutes for sure!