The Playmaker Michael Irvin Pulled from All Super Bowl Coverage/NFL Network (09/14 EDIT: Irvin settles his defamation suit w/hotel, returns to NFLN)

I get what you're saying. I really do. I was never the type of guy who walked up to a woman I have never met and asked for her number or anything like that. That just wasn't me. Now that I think about it I was never in a relationship that wasn't initiated by the woman. But I had friends who weren't shy and they would try to talk to women and get their number. Not in an aggressive way or anything, just normal flirting. Now that is inappropriate and offensive. Just a different time.
It was probably always offensive to most of the women they interacted with, the women just didn't feel comfortable expressing that.

Women should be able to go to work or the grocery store without having to rebuff men's advances.

Just because it has worked for guys in the past, doesn't mean it was ever appropriate, and didn't at least annoy many of the women on the receiving end.