I think I would have asked the leader either during or after the meeting if there was a reason why. Perhaps they just don't show visitor's quilts (which is silly, by the way). I've had a bad experience with a guild myself but they're not all like that. The group I belong to now is not a guild and the women with whom I quilt are immensely supportive. We all encourage each other's work, are especially encouraging to beginners and the friendships I have formed there are an important part of my life. Don't give up.