Yea Postel's law, but also see this criticism:
> "A flaw can become entrenched as a de facto standard. Any implementation of the protocol is required to replicate the aberrant behavior, or it is not interoperable. This is both a consequence of applying the robustness principle, and a product of a natural reluctance to avoid fatal error conditions. Ensuring interoperability in this environment is often referred to as aiming to be "bug for bug compatible".
https://en.wikipedia.org/wiki/Robustness_principle#Criticism
@humanetech @dansup What he did was write up a lot of RFCs in order to avoid widespread confusion..