Don't know what to say. You could have the same IP as a known troll like work school or even same apartment building complex. IP's when I modded a different sight were tricky since in a college there are so many people with the same IP but different sub that I couldn't see then banning one IP from the forum accidentally banned 4 people that were not associated with the banned user. So it could be a mistake and I don't have enough raw info to make a real informed decision just toss out stuff from my own experience.