You act as if "everyone else" sees results from FB ads. They don't. This is a well known problem. They have a high rate of adoption from new sign-ons, and also a high level of departure. While the first number is greater than the second number, they are ok. Either they will manage to improve value and keep more of the advertisers, or one day the Ponzi scheme implodes.
You act as if "everyone else" sees results from FB ads. They don't.
Most ads target a specific outcome: You buy a product, create an account, joining a mailing list, etc. Even the most technically incompetent advertisers establishes these fundamental metrics such that they can say "I spent $1,000,000 on Facebook ads and only got ten signups. I spent $1,000,000 on iAds ads and got ten million signups." That sort of thing.
