They're bright, they move quickly, and there are loads of them. It's like having one of the last peaceful things you can do plastered with the equivalent of full-motion banner ads for Earth bullshit.

I didn't know 3 years olds were on HN :)

Seriously though, there is a difference between a satellite or an asteroid showing up every 15 minutes and a sky with a few satellites at all times.

The later it gets, the higher the satellite would have to be to still be in the sun. The vast, vast majority of them are low enough that this is not significantly long after sunset. The rest are so high up that you won’t really see them anyway (and don’t move significantly fast across the sky, because orbit is slower the higher you go.)

You essentially don’t see satellites at all in the middle of the night.

But even if true this doesn't really count as dual use military technology that "everyone knows" about. Everyone knows about the communications part.