On this judging question-
Are we never to disagree for fear of being accused of judgery? I am judging, yes - I'm using my mind and my beliefs to make an assessment of where I stand on this issue. But this does NOT mean that I am 'gawping', nor - once again - does it mean I am calling into question the entire range of flame's parenting abilities.
Flame, I'm sorry that you are reeling over this, but tbh I think that both you and Psychomum are being more than a little naive. It must have occurred to you that there are plenty on here and in RL who would not find this (or other forms of physical punishment) acceptable? I don't think it is a radical, or even uncommon, position on child-rearing.
Perhaps this is a matter of perception, but the tone of many of the first posts seemed oddly triumphant. You also did not mention the very difficult situation with your dd until very late in the thread. Had either of these issues been played differently, I think the negative responses to your OP would have been expressed less firmly.
On the key issue: you asked a question - will I scar him for life? I know that you intended it semi-comically and rhetorically, but in fact this question lies at the heart of all our parenting agonies, doesn't it?
Psychomum believes that her children have not been scarred by being smacked because it worked, to the extent that they didn't get burnt, shocked etc (and are lovely kids); an that she is well-placed to judge where damage begins, because of her own experiences.
I think I'd query whether one can know for certain that a child has not been traumatized until much later; we know for certain that children find it extremely difficult to express these concepts until much later, if ever. And, like an earlier poster, I'm not sure I agree that personal experience of damage qualifies one accurately to weigh the whole spectrum of possible harm. I would say that it qualifies one to know what hurt you, and empathetically to surmise that the same thing would hurt another human just as much. But I don't believe it qualifies one to say that an unrelated act will not cause damage.
That is my position, and it is opposed to Psychomum's - but I imagine that on the inside psychomum, you and I are struggling with the same feelings.
The fact is that all of us, all the time, are juggling the AWFUL truth that we will almost certainly inflict some damage on our children. Thinking parents - which we are - have to face that truth, and do it anyway. It is very hard, and inevitably, we will make mistakes.
Sometimes we respond in anger, because we are human. Sometimes (often?) it is a question of the lesser of two evils. Sometimes we choose parenting techniques based on our own experiences, fears, philosophies or political beliefs. None of us can ever truly know - for certain - what is right.
But all of this must be discussed. None of us are served well by an atmosphere in which exploring the possible negative effects of our parenting choices on our children has become taboo.
Feelings will get hurt, yes. And this marmite thing is - of course - not the end of the world. But I do believe that if you're one of those who doesn't think the marmite approach is the right one, you have an obligation to say so, because ultimately protecting the feelings of children is more important than protecting those of adults. I think this is as true in small matters as it is in big ones.
I'd be interested to hear what other people think about the general subject of how to deal with issues like this on MN.