So are you voting for Mitt? This and the "Who are working for?" and "How much are you getting paid by XYZ to post this? " type of questions are designed to obfuscate, ignore and avoid the substance and/or change the subject / reference from the substance or opinion on the issue to the poster, i.e., it goes into the same category of irrelevant arguments as:
As far as the old and tired meme of "excuses" and "whining" by Gingrich goes, if you ask for and are given an explanation of certain facts, you can always label anything you don't like an "excuse" or "whine" to ignore and avoid dealing with the substance of an explanation. That, in itself, is a poor, childish excuse for attempting to "win" the argument the substance of which you are unable to refute but unwilling to accept.