I hated pinning until I started piecing a Bargello. This is one of those times when you have to either pin of give up the project altogethrer. So, grudgingly I pinned and after that quilt I do not mind pinning anymore. I do not sew over my pins, although this had happened on occasion and nothing happened, luckily. Nowadays, I pin when I have to, matching seams and when I do binding.