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> So to get 90% useless traffic, it means you set up campaigns without proper targeting or content, not Adwords/FB is 90% useless.

at least one similarity to Poker, Daytrading, Daily Fantasy Sports

so with a more objective criticism, "the full story", new projects might nix these kind of ad campaigns from the budget and Facebook and Google will get one tenth of the revenue?

You incorrectly reference zero sum games (actually, negative sum because of the middle man), where winners' gains come entirely from the losers. Ads are definitely not that, they are a regular market with supply and demand. It seems that the top actors get a disproportionate amount of profits though.

or I correctly made an analogy because of the similarities in things that are otherwise dissimilar.

Ironic because you pointed out the similarity after deciding to write about the dissimilarities.

Disagree. You called out a pattern that has characteristics, but ads don't match the characteristics. There is a superset of characteristics that this pattern falls into as well, but now you are making a misleading analogy.

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