But that's the thing, all Arc is doing (simplyfying here) is logging your Character and Account name next to a number of DPS and a few other encounter stats. From those you cannot get any Data whatsoever of someones IRL persona except from what else you chose to publicly share. All i can see is a game identifier and a character name. If i chose to make my character name the same name as my IRL name that's my choice of putting my name publicly on display to that account. In all cases, if i can find your irl name from your GW2 profile it's always your fault.