Well just look at the existing propaganda machines online and how annoyingly effective they are

Be specific. "Well just look at <general direction>" is a horrible way of discussing.

And about your thought: I disagree. When I look at those online places, I see echo chambers, trolls and a lack of critical thinking (on how to properly discuss a topic). Some parts might be artificially accelerated, but I don't see propaganda couldn't be fought. People are just coasting, lazy, group thinking, being entertained and angry.

	▲	ted_dunning 2 days ago \| parent [-]
		Lack of critical thinking is a key success indicator for propaganda. Propaganda is less about what it says, but more about how it makes people _feel_. If you get the feels strong enough, it doesn't matter what you say. The game is over before you start.