They certainly do: simultaneously arrogant, condescending and vague.

I didn't say they were friendly. They just don't sound like typical legal boilerplate.

Yes, many (but not all) of Apple's developer documents do, especially developer release notes for new and/or experimental features.

Properly written that way to make you feel connected to a human - and not some cold, no feeling facistic reviewer.

I don't know, I read it in the voice of GladOS.