Sounds like your online acquaintance is classist/racist.
I'm white, rural, working class. What's more, my neck is sun burned from laboring in the sun and I'm of Scott origin. I'm from the rolling hills of Southern Indiana and my father's name is William, his grandfather's name is William, his grandfather's name is William and so on.
So, Redneck being a term for white, rural working class people and Hill Billy being a term originating from Scotts living in the hills of Eastern KY/Western VA who had a proclivity for naming their Sons William, I guess I am a redneck hillbilly.
I'm glad your acquaintance is not going to be joining us. I do not care for the company of such people.
Don't take too much offense. A lot of internet is a totally different language. Her comments may very well translate in to a face to face comment something like, "I don't like them. They hurt my feelings and then banned me."