It's not a bad example when it's literally relevant to the article.

But is it?

I don't think iphone market shares are large enough to make a company like tumblr die.

Yes they are. iPhones make up over half of all smartphones in America.

Globally it is less than 20%.

Do you want to be the person who has to explain why your userbase just dropped 20% because you didn't want to ban porn? If Apple says you want to ban something, it's getting banned. "Globally" is also not a good metric here, since the vast majority of tumblr users came from english speaking countries.

You’re right. Better to just ban porn and lose 100% of the user base.

In the local galactic supercluster it might be less than 0.1%, but Tumblr happens to be predominantly used in the US, and that's what matters to their business.

Weighted by ad revenue, it’s closer to 50%.

Yes, the 20% that has all the money.

Nobody cares about that though. US is where all tech happens.

> I don't think

You can think what you like but they literally did so... ¯\_(ツ)_/¯

There was hardly a company that powerful ever. Controlling communication, media consumption and entertainment at will for a user group as big as theirs.

Never before. Not with oil, cars, industrial products, pharma etc.