Second question, are these "cut marks" on a lug nut normal?
http://wetakepic.com/images/2018/02/17/dented_nuts.jpg
I always use deep sockets, which fit over the whole nut, so I know I didn't
make these marks - but what did make the marks? Are they factory original?
If so, why?

To help keep the pretty chrome covers from coming off the actual nut. Dimples not cuts