Just posted this to the other discussion, but it bears just the same. This is just going to be a collection of anecdotes from people who self-select to report because they feel good about where they're at, or because they feel righteously justified in complaining about their situation. Self-selection ruins the data. The responses have to be random to be useful. And the silly thing is that most people who are involved…
It's not actually that bad. First, even in your version, the "feel goods" (high salaries) and the "complainers" (low salaries) would cancel each other out, and (assuming equal numbers of them) will give us a usable median value. But in the real world is more complicated than "self-selection" in the basic mode you describe. Who might "feel good" and who might feel "justified in complaining" will not be so much based o…
Why would you assume that? To me it seems the opposite, that they wouldn't be evenly distributed.