I've been very fortunate that I've not had snotty quilters address me like that, and for that, I'm thankful, because I KNOW I wouldn't have a quick comeback in the moment. But one I can think of right now is, "Oh, I'm sorry. I didn't mean to give you the impression that I care what you think."
Lately I've been hearing a lot from younger quilters that some that have had the privelege of having more years of experience putting down the younger quilter's work. It makes no sense to me that people would be rude about another creative person. I mean, aren't we supposed to be teaching the younger generation our craft, so that it doesn't become a dying art? If younger quilters are confronted by snotty standoffish quilters, does that give a positive image to the younger quilter? Hopefully it doesn't deter the younger one from continuing on with her craft.