This is true, but you would expect that "hacker employees" would make their products compatible with "hacker users."

My thoughts when reading Zuckerberg's letter (and I admit I only scanned it) were: 1. "Wow, this surprises me, but I actually agree with what he is saying." followed immediately by 2. "Waaaaaaait just one minute. Facebook -- externally at least -- embodies none of this!"

They have closed down what could be open. They are helping to ruin the internet by making walled gardens acceptable and the norm.

If Facebook embodied "the hacker way" internally, they wouldn't behave in the manner they do toward their users. They wouldn't elevate their "hacker employees" to a privileged position over a "hacker user" when it comes to that user's data and mechanism of experience.

A company wouldn't get to call itself an "open source company" just because all of their employees have access to their source code.