So if someone is informed on a topic they have a kind of societal obligation to post? By not posting, it allows those who may be less experienced or outright tr

So if someone is informed on a topic they have a kind of societal obligation to post? By not posting, it allows those who may be less experienced or outright trolls to steer the discussion towards irrelevance. I like the idea, but not sure how folks know which group they fall into.