Have always been told by professionals as well as other quilters that you don't want the back of your quilt to look like spaghetti on the back, also a LA friend said that most LAer's will not work on a quilt that has threads hanging everywhere and they certainly do not have the time to sit and cut them for a customer. He said this one customer sent him 2 more quilts the same way which he returned unquilted and when she did it again he charged her extra for his time. That was the last time she did it. I also am a long ago home ec student who was taught to cut, as well as from my mom who sewed.