I have only seen it as harassment mainly on news sites. "We cannot play this video" or the all too common Twitter or Instagram embeddings. On one hand I know I waste my time but I am such a weirdo I make "my stand" by always declining. Are the consent forms too broken or conveluted I usually leave the site. But we are in the minority and all of us are probably HN users. And my gut feeling is that on HN we are still a small minority. I think the more common approach here is auto accept extensions.