This is exactly backwards. If you don't have separation of specification and application, you don't have a specification. I mean, standards aren't necessary; i

This is exactly backwards. If you don't have separation of specification and application, you don't have a specification. I mean, standards aren't necessary; interpreters can absolutely be snowflakes. But multiple implementations is a sign of strength, and intentionally targeting the bugs of one implementation is short sighted, if sometimes required.