Wow........I do both....depending on the situation....if I pin to keep my seams to marry so I have nice points...don't make much since in taking them out....I have hit many with different results...broken needles and bent pins....I have used my machines for 20+ years and no problems....and I have sewed many things from quilts to cloths and crafts.....I took Home Ec in schoool some odd years ago and it was taught to us to sew over them......But now my quilting girls has a hissy when I don't take my needles out and I'm a pinner....so in my judgement for whatever it is worth.....do what works for ya.....juat change your needle more often.....:-).....