You people need to chill. Devin's statement is that GameFaqs being a US is why it's date is displayed in this format by default. He's not arguing against changing it, if he was he would have locked the topic at this point.
Personally I'd like for us to offer custom date formats, it's just not as easy as you think. The site is quite large as you know, and we use different formats in different areas (look at the boards vs say FAQs for example). Not to mention quite a few pages of the site are cached, so adding a user-defined setting may break caching and account for greater overall load times. There are a variety of hurdles we'd need to overcome before such a change is made site-wide.