alt Hacker NewsApples and oranges.
One is „accept a wide array of syntactically malformed input, ill defined, substantially complicating the parser“, the other „accept two trivial extensions to the standard that are widely used and don’t affect the resulting data in any way.“
> accept two trivial extensions to the standard that are widely used and don’t affect the resulting data in any way
That's always how it starts. If they're truly trivial the reasoning also cuts the other way. Remove them upstream.