Probably just data mining
Sharing your opinions of how others chose to dress or act is weird unless you are doing it to influence others. Trying to influence people by belittling them is rude.
You could be saying it about how someone dresses, or dances, or what bike they chose to ride.
It is unfortunate that men belittling women about their makeup is so pervasive in our culture that after at least three generations of people highlighting how hurtful it is, people still think their right to state their opinion of random people is more important than people's right to go through their day without being accosted.