A reference to Postel's Law: be conservative in what you produce and liberal in what you accept.
The law references that you should strive to follow all standards in your own output, but you should make a best effort to accept content that may break a standard.
This is useful in the context of open standards and evolving ecosystems since it allows peers speaking different versions of a protocol to continue to communicate.
The assertion being made here is that the world has become too fraught with exploiting this attitude for it to continue being a useful rule
The law references that you should strive to follow all standards in your own output, but you should make a best effort to accept content that may break a standard.
This is useful in the context of open standards and evolving ecosystems since it allows peers speaking different versions of a protocol to continue to communicate.
The assertion being made here is that the world has become too fraught with exploiting this attitude for it to continue being a useful rule