L15 PvP can be extremely bad.
But I think it's more about the actual person rather then his status ingame. Example; I've some of the best lv15 bears with good attitudes, where as I see these "good not great" type bears that spam "lmao luck" when they lose or "cry nub" when they win.
Although obviously good gear and doing well can help inflate an already potentially high ego, it's not the main reason.
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