GrinMode, I think people on forums might come across as aggressive.....but I think a lot of us just like to see facts, specs stated correctly. There is enough ambiguity about the relative pluses or minuses of a camera to where someone is going to be more vigilant about an actual spec.
I would say wax doesn't exactly come across as warm and fuzzy.
But I think by stating "Show me where it says metal"......that that also came across as a challenging, aggressive (in this context) response???
But you are right, forums are a haven for different behavior than most would display in person because people can hide behind the anonymity.
Getting back to the point at hand.....I think having the steel skeleton is a big plus. I have heard of people dropping the K-r repeatedly and not having ill effects (though not recommended!). Having something solid behind plastic is much better than just plastic. And I wouldn't expect the entry level model to have as solid a shell as the higher end models.....I am very satisfied with the K-r construction.