Some quilt stores will rip their yard goods... many will cut.
As much as I don't like those dangling threads, and stretched edges, I have to say I really don't like uneven cuts since they usually short you on true fabric size. If there is any distortion from manufacturing and being on the bolt, at least I can start with the straight ripped edge; and then I wash all my cottons, damp dry and iron before using.
If there are too many dangling threads, I believe that's a sign of a cheaper quality weave. Before washing I cut several 1/4 inch cuts on that "rip" (or cut) edge and that prevents long tangling threads in the washer.
Good luck.