Surely as we go through life, we have nasty things said to us and about us and similarly had good things said to us and about us, and if we then take into account all those comments completely misheard, misinterpreted. that these things should just drift out of our memory except for the occasional one.
Lets face it most of us will at sometime said something themselves, and I do not beleive anyone who says they haven't. if nothing else you will have said something anodyne that someone else has completely misinterpreted.
At her wedding my sister said something to me that was so devastating I thought I would never recover, then 10 minutes later, I realised that the few words she had said, had two meanings, the second a simple statement of a fact, and this was the meaning she had meant to convey.
Months after the wedding I told her what she said and my first interpretation, she was horrified, that meaning had never even ocurred to her, but she could see why i had misunderstood it.
I just think that in most cases people should shrug off what people say about them good or ill. Most comments are throwaway remarks. said without thought or in a moment of extreme emotion.