I would not mind contextual ads that don't get in the way of viewing the actual content a website or mobile app is offering. But no, we get huge banners that cover the whole background, pop-ups, every click opens a new tab redirecting to an ad and "hot chicks in your area". If I'm seeing an intersting ad I'll click on it by myself, don't need your help really. Conclusion: it's not the ads themselves but how they get in your way. See reddit ads, google ads. They are part of the actual content.