How do you deal with rude players on Maple?

I kill them with kindness. Jerks can't stand it when they're being rude to someone and that person is being as nice as they can be.

That's what I do too.

Sometimes with really annoying people I write their names and mass defame (or mass fame if they're defame collectors o-o) them, spam trade/chat/friend request on them, or spam whisper on them with mules on 3+ accounts. It's fun.