Fraying is normal. When you snip try to snip about every 1/4"-3/8" for a nice chenille finish. I've done both bound and snipped edges. With a thin- no flannel one binding would be easy, just leave 1/2" from edges unclipped. ( I usually haven the quilt all done & bound before snipping) and if I'm going to snip the edges I sew a double line of stitches all the way around the quilt about 1/2" from edge before clipping