Does Ron Paul's status as a near perfect candidate for libertarians and small government conservatives mean that everyone else is awful and unworthy of support? According to Lew Rockwell the answer to that question is "yes".
Rockwell is right to criticize Amit Singh or any other candidate for bad policy positions or questionable associations in their past, but lets not throw the baby out with the bath water here. Looking for ideological purity from every person expressing a political opinion is not an achievable goal, nor is it a desirable one. Rockwell, whom I generally agree with, wouldn't even hold up to a purity test himself.