This site is a potential gold mine for management, assuming they genuinely care about understanding what employees are thinking. Reading this board gives a pretty clear view of what is happening inside the organization, though I could be wrong.
Management should identify the main themes being discussed on Layoff.com and measure engagement around them, then do the same on LinkedIn. Combining those two data points would likely provide a much more accurate picture of what is happening on the ground.
The board should require executives to do this instead of relying on sanitized surveys that get massaged beyond recognition.
Food for thought.