Are they even yelling at the correct people who can do something about the situation or just with a bunch of similarly minded people? Then is the yelling just the filtered yelling that the platform wants to support?
Although I suppose it is like water, it seems not to have an effect at the start but eventually it splits the boulder.
But then this a true of most protests, a vocal minority shout about the "injustice" and then everything goes back to normal, unless a majority agree (and can do anything about it) or its a major PR issue. You probably will not even see it in the news unless it fits the plan for outrage.