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I remember seeing that and wondering at the time how Wouter did that since he doesn't have enough reputation to edit other people's posts. I was going to ask about that here, then forgot.
Personally I think that should have been added as a comment or possibly a answer of his own. Wouter is very new here and his idea of how things are intended to be done is probably still evolving rapidly. I know it was a bit confusing and overwhelming for me especially in the first week, and I still don't really feel like I understand all that well yet. My reaction was to avoid doing things until I understood them better. Other peoples' reaction may be to try various things.
I know Wouter from the PIClist, and he's a smart guy that usually has good things to say. If this is something he shouldn't have done, I'm sure that's only because he didn't realize that and somebody should politely tell him. I'd still like to know how someone with his reputation score managed to edit another's post though.