Most casuals do use addons so with your logic of sweeping accusations with no basis it's perfectly okay to assume you are aswell. Casuals using addons are in no place to tell others what they can and cant use
I already said it..I dont need or want or use any kind of addons. None. Zero. Nothing. I have no need for them, the Vanilla UI as it is works fine. You can assume whatever you like, I dont care, I also said ( see above ) that IF I joined a static or other group for savage or ex or whatever, if they said I need to get whatever addon , I would refuse outright.