A few of my best friends are on the CHQ certificate. I've been on the YX and S5 certificates and I'd say over half the Captains I fly with are former CHQ. I've never seen any air of superiority, nor would it be tolerated. I can't imagine a FO trash talking CHQ without getting an earful from a Captain.

I think your friend might be suffering from a Napoleon Complex. I treat pilots from the red team the same way I treat blue & green team members. We're all eating the same poop sandwich.