Add me to the homespun bandwagon. They are not a problem to work with and I had no issues with fraying when I made the below quilt. This had a combination of highend LQS homespuns, which definitely some of them were a much tighter weave and heavier fabric and homespuns from wallyworld and all of them are holding up just fine. This quilt is used daily. It is backed with flannel, W&N batting and quilted witha simple cross hatch grid done on my Bernina.
When I peiced the triangles in this quilt it was all done with the method of using squares and stitching a diagonal across the square and cutting off the excess. I had no issues.