-1
1st of all, PvP is a part of the game. No need for extra punishments. Secondly, this will allow griefers to get away with more things, as anyone can do any griefing they want to, and if someone turns pvp on to kill the griefer and forget to turn it off, they lose everything next time they die, whether it be to mobs, towers, another player, etc. Thirdly, if you dont want to be killed/raided, MOVE TO WELLINGTON! It was added for a reason.