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I did a back of the paper calculation as to how much fb would earn via me as a user. I noticed a user like me spends about 15 mins a day on facebook and see around 6 sponsored posts. Internally FB ads are all CPM based, at about $4-5 per CPM, no matter the optimization advertisers choose. In a year he would have seen about 2000 impressions, and hence minimum price would be around $10 per year. (There are many users w…
I think your numbers are pretty far off if you look at Facebook financial statements, and a more accurate cost would be around $200/yr for a daily user [1]. US & Canada had 189 million daily users and a quarterly Ad revenue of 8.487 Billion dollars. That is $45 per user per quarter. [1] https://s21.q4cdn.com/399680738/files/doc_financials/2019/q3...
Also, the numbers you posted include all the inventory - facebook news feed, ads on the side right on desktop, instagram, messenger ads, stories ads, instant articles, and even the ad network. According to facebook (read somewhere) 70% of their ads are on the ad network.