Only read the 1st couple of pages, but already I can tell i'm in the minority, lol.
Yes, ive smacked both my children when they were young for some misdemeanor they've done. Did I feel bad at the time? Yes! But then again so did they and they didn't do that particular wrong doing again either!
Does or did that make me a bad parent? I dunno, I assume most of you think that it did. I however stand by the thinking that it's had no long lasting damage to their wellbeing, they've both grown up up (well, ones still only 14, but going ok so far!) to be respectable well rounded people.