You're kinda preachin to the choir here - this is a cnc site so most of us here are users of cnc...but...I take it you've never seen mfg.com ?
(and NO, I wouldn't use mfg dot com so hopefully I am WAY off base here and am just misunderstanding you)
The way MFG.com is, you basically have a lowest bidder mentality and so you usually end up with lowest bidder results. I don't believe the iron wall of communication is changed by the use of this site either. If anything, it makes it worse....much worse.