Good for him.
If you so much as cough during a Keith Jarrett gig he'll straight up end it and walk out.
There's a great recording of Pete Townshend going off on a crowd, too, I think it may only be on the 30 years of Maximum R&B set, I forget where he heard it.
I mean, there's going to be talking. If there is bleed over from the bar area, a few comments here and there, chatter between tunes if the act isn't into banter...then I can stand it. But full-on, full-voice conversations not even about music, but just as if you were at a regular bar trying to talk over whatever was playing? Fuck that shit, man. I'm there for the tunes.
I thought maybe it was a youngster thing, but it was not age discriminate and I've had it happen way too many times in the last few years. Then again, I was conditioned at an early age not to fidget or make a peep or anything, less I get a knuckled finger dug into my thigh by my mom. That was at the symphony though. I'm probably just traumatized from that.
Anyway.