> If I am authoring a Norwegian web site, the date format must be Norwegian, regardless of the user's preferred locale.

If I understand you correctly, this is something I strongly disagree with. Many people are bilingual if not more, so when I have two tabs from different sites I prefer the dates to be consistent. At least on my Linux machine I want those to be driven by my locale settings, which lets me choose UK English, US English or 50 other conventions if I so desire.

I routinely run terminals with different locales set on the same screen and I would like programs started from those not get smart about locale choices but rather do exactly as I ask. Just my poor user 2c.