Let's be upstanding individuals and give credit where credit is due. Our creations are our intellectual property and are protected whether you believe it or not. Check the law. If you steal or "borrow" property and profit from it you may be confronted by the owner. In most cases all you have to do is ask permission and the owner is thrilled to share. How easy is that?
I don't know where manners went, but I know we all know good manners. You wouldn't steal candy from your elderly neighbor and sell it to the neighborhood kids would you? Of course not. Let's show the quilting community we respect their contributions. We may be in their shoes some day.