Ignoring a source because you disagree with their political position rather than the facts being presented is, frankly, dangerous.
That is not true at all. Posting content from disreputable sources encourages the uninformed to see the source as reliable when it is not. Posting these stories from propaganda sources is always harmful. There is no excuse for it when you could have simply taken the time to find a legitimate source for it. If none is found, then it would have been more wise to not post it at all.
You were quick to become offended when the source you posted was called out for its weakness. Instead of being defensive and attacking the commenter who questioned the legitimacy of the source, just own up to the fact that you should have chosen a better source to begin with.