Interesting thoughts from all of you. Doggramma I got a little chuckle when I read your comment. This is exactly what I did when making this quilt top. When my exact scant 1/4" seam wasn't so "exact", I stared at it for a bit, and pondered in my head, do I want to rip this out and do it again, and laziness got the best of me, and I just reinforced it with a second backup line.
I remember watching Genny Doan making her quits and think that her seams look like a healthier size 1/4" seam. Then one time she was a guest on another quilt show, and the quilter had her make a block. When she started sewing it, she said;
You know my 1/4" seams tend to be a little on the generous side. It just makes me feel better. So I remember thinking, I was not alone after all.