I don't care for the pinked edges either. My guess is that the manufacturers think this will help prevent distortion of the fabric edges in precuts, but I'd just as soon they would just leave straight edges on the squares and rectangles. The pinking seem to narrow the strips and makes measuring harder.
Honestly, is it really easier to use them by not having to cut them myself? I have a lot of charms that haven't made it into anything yet. I have some that are bigger than 5", but only just bigger and would have to trim them, or they are just not quite 5", and I can't use them.
So, I just cut my own. And I cut my own 2 1/2" strips, so layer cakes aren't for me. I haven't even tried the honet buns and pies that are out there.
The names just make me want to go to the bakery and need to stay away form there. The honey buns and pies there are really good!! Too good! hehe