I do ask the same thing and when they do it to me I block them cos I'm not wasting my breath on them, but yes I struggle to understand why they would be unpleasant for no reasons.
it's almost like they think they have the power over us but really they don't....
I thought that guy was being cheeky for asking you to clean your mirror when he in fact had cum-stained lycra photos and some may ask him put on clean ones before taking photos.... *eye rolls*
Your photo is fine so I wouldn't worry about it.