that is too bad that happened. I don't belong to a guild but not for that reason. I learned very early you can not please everyone. We were looking for a shop to sell our quilts in, one shop said they were too modern, another said they were too traditional -- same quilts!! Another time a craft show jury said about our quilts, "not enough consistency" and "too many look the same". I thought those were conflicting statements??
Some people just like to criticize. Along with Thumper's advice, I would add,
"Just because you THINK something does not mean you have to SAY it."
Now if I could remember that more often....