There absolutely are. But more and more on social media, you're not dealing with real people, you're dealing with organized/planned PR and presence. You already know this and ignore commercial material but you think it doesn't apply to subjects like news, politics, and racism?
Online comments, not real interaction, and frequently at least pseudo-anonymous.I don't go dredging through any special websites. I'm talking about comments under articles by Economist, WSJ, BBC, The Guardian, FT, NY Times etc.