Someone Abusing Ingame Chat-Emergency

So I was playing and I came across what seemed to be myself in the ingame chat. They had my username exactly, so we were indistinguishable, and they were posting some obscene things. I also witnessed them change usernames instantly to other's username to subject them to the same harassment. This needs to be adressed immediately, as it could ruin relations between players, especially amidst the intense political climate of Wilds.