I think you may be the one taking it too seriously. I mean the joes in the gym get on my nerves too, and I talk shit about them. It's a pet peeve. But I don't let it effect my work out. It bothers some more than others. I can't lift without music. I've turned around and went back home when realizing i left my headphones. While just a few days ago someone said they get distracted by music and something along the lines of "you're not giving it your all " if you need music. Obviously it's just a matter of opinion and/or what erks a nerve in someone. I hate posturing cunts in the gym who think they are big. I'm 250, was 265, with a six pack, and I don't posture even when joes are throwing around 135 like its fighting off the end of the world. . So some things bother some more than others.
I may be taking it too seriously but its just that after going through this thread all i see i people bitching about frankly insignificant things.
On the music front i prefer to lift without I find I pay more attention to the songs than the set, but if its what you need its what you need, its my flaw not yours that I don't listen to tunes.
Posturing does get my goat, especially over here in the UK may not be the same in the States but guys wearing designer vests doing their hair in the mirror checking out their abs.