The key word is unwanted. And yes, it is a lot wrong sending nude pics to someone who hasn’t asked for that. And yes, women sending unwanted nudes are also wrong. Maybe for you all nude pics are wanted, but for other people are not.

He said “it is the way men flirt”, that implies dick pics. Which are quite common to receive in dating apps, most of the time unwanted. And since most of the time that is te reason to stop the conversation or blocking the guy, I simple can’t imagine that someone uses that tactic to get dates. They must do it for other reasons. Maybe the “lols” or maybe as a way to feel “dominant”. But it is not believable that they do to flirt, since that doesn’t get men many dates.

But if a men must really use dick pics to “flirt” I would suggest choosing a dating app focused on sexual encounters where nude pics are implied by the setting, so people that join the app implicitly is saying that they want nude pics. Consent, context and sometimes subtext are very important when it comes to flirting. For all people involved. ;)