Well, to be honest with you Otto, I haven't figured out how to do it.
Otherwise, I'd be handing out laudations on those who can back up what they say with good information (not generalities or opinions) and who can do it without getting all pissed off when someone disagrees with them.
I've been a forum once where there was a poster who got all bent out of shape if you didn't accept every sacrosanct missive of his. He got tedious very quickly and eventually was ignored by most. I've seen a few similar to him lurking about this forum, but not many and not nearly to his degree of self-centered importance.