"Some people will look up the raw material and discover the poster is not reliably credible (or is a fraud!), but most readers won't, and some readers will be persauded by the propoganda."
Are you claiming FR posts are not "reliably credible," and "propaganda"??
Obviously, some FR posters are not reliably credible. And yes, many posts are in the nature of propaganda. I'm not complaining, just making an observation. There is much better opportunity to get to the truth of the matter from FR than from any media outlet. But the honesty and accuracy of a given post is far from guaranteed.
Then again, maybe I missed your /sarc tag ;-)