Interesting thread! I look back at some of the stuff I posted when I was new here, and man, is that ever an eye-opener!!!! It helps me a lot to look at that old stuff and see how far I have come. I don't feel any need to edit anything, but yes, it does sometimes feel odd looking at a post of mine when I now feel so differently.
Where new posts are concerned I usually only edit if I see typos, words missing, a phrase that's unclear (there's an opening for comments!
), etc. As for the rest, I try to take the attitude that this is me, for better or worse, and one of my tasks as a survivor is to become comfortable with being me and expressing what i think and how I feel.