Nope.
Noun 1. propagandist - a person who disseminates messages calculated to assist some cause or some government
A propagandist is disseminating propaganda consaciously for a cause. But, if s/he is successful, non-propagandists will buy into it, and propagate it further. *Lunatic*, n. One whose delusions are out of fashion.
So a propagandist is disseminating propaganda. Period.
So if I say that your public posts amount to propaganda, I actually implicitely called you a propagandist. Free at last! Free at last! Thank God Almighty, we are free at last! (Martin Luther King)
prop⋅a⋅gan⋅dist [prop-uh-gan-dist] Show IPA Pronunciation –noun 1. a person involved in producing or spreading propaganda.
dictionary.reference.com
if your opinions are propaganda and if you spread your opinions by repeating them on a public forum
it follows that you spread propaganda =you are a propagandist.
Just like I said before: even when evidence is in front of you, you still won't have it. Free at last! Free at last! Thank God Almighty, we are free at last! (Martin Luther King)