Seriously, why?

Okay, I have been thinking about this for several weeks now and just need to take a poll to get to the bottom of this nagging question hanging around my aura.

Why do people get so upset about painting wood trim and woodwork? Please, enlighten me.

I think it's obvious where I stand because since we moved into our first house we've painted two of our rooms' trim a beautiful creamy white color, and they are awesome even if it's a pain to do.

Reasons why it's okay to paint wood:
1. Sometimes, it just looks better. Brighter, cleaner, fresher.
2. It's not like we have beautiful woodwork and trim in our house. It's all in good shape, but it's not anything any other house wouldn't have. It's plain. And, I could go buy a pile of it at Lowe's right now if needed.
3. It's not just a fad. This excuse is really annoying. Everyone knows the AMC hit drama Mad Men is critically acclaimed for it's accuracy when portraying the Draper life/residence from the 60's. They have beautiful white molding and woodwork. Not a fad.
4. Today's paint colors look fantastic with white molding. Hence our guest bedroom project.

Just had to get that off my chest. Better now. :)

P.S. If you don't watch Mad Men, you definitely should. Kind of quirky, but very dramatic and funny in a dark way.