just got flamed for playing jax on my other account

i was playing jax and was doing super well basically 1 v 9 with split pushing and the enemy team has a graves and at the end game lobby the graves was complaining about me playing a meta top laner when he was playing graves jungle i told him we both meta slaves he proceeded to tell me to die in a fire and left i think its funny how people will complain for playing good champs in ranked xD