Why are cabin lights turned down on takeoff?

Huh.

That is all. Just huh.

Alaska Airlines has started including a statement about wanting us to feel comfortable and to report any unwelcome behavior. It’s probably a good idea, although disappointing that it’s necessary.

Also, you forgot “please use the lavatory in your section (stay out of first class)” and “you can’t drink your own alcohol.”
For what it’s worth, I’m on a flight right now and closed my shade as we left the gate. No one said anything.