James,
I think some of those questions would be good questions for Gayle for the IRC meeting, but I will make a few comments.
I think that WMF does have some problems that it needs to address that fall within the scope of work of HR. I don't work for WMF but I would say that as a "customer" of their services I feel that lot of the scores and and employee comments that were reflected in the survey are generally aligned with what I believe their strengths and weaknesses are as an organization. Therefore in response to your first question I would say that I feel that the degree of anonymity offered by the survey was sufficient to make employees feel comfortable with providing candid feedback about what's good and what needs improvement and that the perception of employees is not radically different from the perspective of at least this "customer", and I think this synchronicity is a good thing.
I think Erik addressed your question about pay in a way that is very reasonable and I would ask you to re-read his comments on this topic at http://lists.wikimedia.org/pipermail/wikimedia-l/2012-December/123272.html
I get the impression from the December 2012 Metrics meeting that the disconnect between exec survey responses and responses at other levels in the org is very visible to the execs and I would expect them to address this in a thoughtful and timely manner.
I suggest that the IRC meeting may be a better forum than this mailing list for you to ask further questions.
Pine