ah, so you saw this on AD? Curious how others responded to her... Seems a very narrow and angry view. But regardless, thank you for answering me, as for your question I would not think it is rude, but that is my personal thoughts, I have found Deaf people to be really up front and if they have an issue with you, you will be the first to know; especially with you signing 
personally feel more people to truly learn the better.
