It's okay. People will always cry foul when they don't understand how a game works and it is used against them to full effect.
I remember, years ago, when Jedi Knight 2 was at it's peak, I used to play multi player death matches with Squash. There was a force power called 'force sense' that makes you 100% immune to being hit by a sniper rifle beam. Your character does a little 'twitch' and you dodge the laser. Well, we always had that power on, and after a few attempts by a sniper at killing either of us. He confidentially called us some variation of cheating hacking scum and that he's like, totally going to report us to the admin and stuff. It was pretty amusing.
My point is: Stuff like this happens, and it's usually pretty funny.
Being called an exploiter by the uninformed usually means you are doing something right.