I don't know. One of the guys with glasses. I had my back turned toward the computer away from the TV. I forget his name.
In legal terms that is called hearsay. It's generally dismissed as bullshit.
I think the problem you are facing is like trying to tell someone that never scoops their cat's box that their house reeks of cat piss and turds. When you live in an environment like that for so long, you stop being able to sense the problem.
When all you do all day is vomit up cow shit, you become unaware of the persistent bullshit stank of all that you vomit.
What's disturbing is that Half-life knows what an echo chamber is. And yet he volunteers himself into an environment riddled with cat piss and stank. I'm a cat person myself and yet even I understand some custodial engineering is required from time to time.