I'm a redhead and have gotten the 'porcelain skin' comments before; I always take them as a compliment. I've had people stop me in foreign countries and ask to take pictures of me as they had never seen such pale skin before. It's all in good humour and it's always been very friendly. I've never worn fake tan in my life, I don't see the point.
My sister got married a few years ago and my eldest sister and her daughter got spray-on tan for the day. They're both redheads too and imo they looked ridiculous; it was clearly fake tan and it did nothing for them. Some of the pictures of me beside them are quite funny though, my skin makes me jump out of the photo! I prefer the natural look, whatever is your natural skin colour always looks better on you I think.