Supporting a whistleblower/gov transparency advocate when the leaks suit you then abruptly deciding he's a "lying little bitch" when the tables turn is indicative of the type of person you are in the most general sense.
It transcends Assange and to a point transcends politics. Whatever your ulterior motive is it must be of profound importance.
Interesting take on his reasoning. I have a question for you. Would you feel it is ok for a whistleblower to be used by a foreign power who is against what America stands for purposely trying to cause as much tension and turmoil as possible?
For instance, what if ISIL or AQ came across sensitive US government information and handed it over to Wikileaks who then posted it. Not knowing what is true or not in that dump wouldn't you take issue about how the information got there?