I get called a cheater

One of the most frustrating things about the game for me is that I get called a cheater a lot. I have 1800 hours and it pisses me off that people start accusing me of cheating instead of thinking about the fact I've got enough experience to do the things I do. I don't even do any crazy spinny stuff or animation abuse. Best thing I can do is a Wessex, but I'm good at reading so I don't get feinted or fall for drags and whatnot. Yesterday I was dueling on a veteran server and a dude joined. After we dueled and he killed me with a GS combo in two hits, he called me a cheater for using double swing maul cheat??? I don't even know what that is bro like wtf.