Sincere question: It appears that it's crystal clear to everyone where the distinction between fake and real news lies, or who should be allowed to post (mis)information (serve ads, if you prefer) on the interwebs, or how to identify the culprits exhaustively. I fail to see a way in practice to draw the boundary and identify/persecute the offenders. Imho virtually all ads spread misinformation (push someone's agenda) to my detriment. My only means of resistance is inherent in my duty (civic, but also self-serving -- to keep my sanity) to consciously make the effort to seek/filter through multiple viewpoints.