I just got harassed because of a luna spray i had, when an admin comes on I tell them about it and show them what the person wrote. The guy didn't get a warning, but sore his mistake and is sorry, but does still think that we (bronies) are all fat bastards in our 30-40s.
Maybe, but you're the better person for not going apeshit and getting him banned. Plus you have to give the guy the benifit of the doubt and see if he learns is lesson and takes the admins warning seriously