I don't know, it seems like one of those things there is no right or wrong answer to. I've argued with people in the past by telling them its wrong but its always going to be more people that will tell you nothing is wrong with it than not as long as its not hurting them.
Besides isn't it society what decides whats right or wrong anyway, I mean who's dictating what right or wrong with that issue? Kinda why I just gave up on telling people its wrong and I don't think its one of those issues you can just say its common sense on.
I didn't read that full topic by the way but i'm sure that's about how it went.