The LQS and another store do it this way i HATE it with a passion. I would rather risk a crooked edge than definitly get a fraying one!
I hate the sounds I hate unfolding the fabric and having long threads to untagle, that get stuck to everything.
Just gives me extra work!
I have to come home and cut the fray away immediatly. Can't wash it like that, turns into a rats nest.
Truthfully i find it lazy.