I saw a tutorial on Missouri Star Quilting video where the instructor was using JRs joining them in strips. One was pinked and the other was not. She claimed that the pinked edges were "wonderful" because it was easy to put the pinked strip on the top and line it up perfectly to the "unpinked" strip because you can easily see that the points of the "Vs" meet the edge of the straight strip.
Sounds perfectly logical to me but I've never used them before, didn't know about the fuzz problem or that the measurement is off.
Also, Missouri Star Quilt Company sells Moda JRs so of course they would promote them.