Did you read the article? The author suggests that petty attacks like that will only make Obama look good. Basically, Hillary and Obama are virtually the same on most issues, so she resorts to petty attacks. He also suggested that Obama does not articulate his positions because he fears the general electorate (not the 'rats) will see how left he truly is. He thinks Obama can be beaten by MCain if McCain sticks to the issues, where Obama is truly weak.
See Message # 5. Duh!