I've had an ongoing argument with a member who advocates that everyone should do as he does....except that he climbs 10k mountains weekly, and lives at 7k feet. His experience is NOT going to be the same as the AVERAGE person, who is not likely in that shape, and is certainly not that acclimatized.
I can't imagine someone who lives that high advocating that we sea-level dwellers can even think of doing the same thing.
Over the years, I have noticed that those Colorado dwellers have very little experience with AMS, since most live around 5K. You don't see much discussion of AMS on the Colorado-based 14ers.com. Same goes for Reno area residents who live near the same elevation. Anyone in those groups going to 14k is like sea-level people going to 9k. Most people don't have trouble at that elevation. The higher-elevation people would have to go to 19k to experience the same symptoms as the sea-level group.