This is why a company being too much bigger than its clients is an antitrust issue regardless of market share; B2B competition isn't the only thing that matters. A market must respond to signals from consumers to be healthy, and it won't do that if the individual customers are insignificantly small compared to the companies in that market. In such a market, collusion between the market leaders becomes more valuable than competition.
Content producers and Facebook users aren't the clients. Advertisers are the clients, people are the product.
I also think that calling something thought-terminating can, itself, be thought terminating. In this case, a way of dismissing a commonly made point under the assumption that I have not thought through the issue on a much deeper level, but I have done so. We may simply disagree on our conclusions.
Like any business, they have to maintain a good relationship with their suppliers. In this case they have to provide a platform that users return to over & over again. But they optimize their business towards revenue generation, not suppliers.
It is funny to read someone who has advocated developing for iOS for a decade to say things like this with no irony.
If Apple decides they like your app and want to copy it's features into their own app or iOS itself then you're 100% fucked.
In general, relying on the good will and unchanging rules of a 3rd party platform for your business is inherently risky.
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Here’s how utterly clueless Speiser was about getting into bed with Facebook. In June 2016, he told The Wall Street Journal there was no reason for publishers to be nervous about Facebook:
18 months later exactly the thing Speiser said he wasn’t concerned about — Facebook fucking him over — forced him to shut down his company.