I am in the pinning group - I pin everything for all the reasons already mentioned. I am not a fast sewer and it does take me longer than most to sew stuff and I know I'm a bit persnikity in having everything line up with no stretching or shifting. If it does shift it gets ripped out. I will use either my walking foot or 1/4" foot and remove each pin before it goes under- yes I know there may be easier and faster ways but it works for me.