> We should be suspicious of people who try to claim that there are additional unwritten obligations for reusing source code. Open source licenses have very generous terms, maybe too generous. They allow takers. That’s how it works, you can take it.

This only makes sense in the point of view that every obligation should be enforced by courts. However public opinion can sway people to fulfill non-legal obligations or else have their reputation tarnished. WP Engine reputation is pretty damaged due to their behavior of being a "taker" rather than a "maker".