And so what? It's not like they can fix the fact that there are old websites with outdated information on them, so people who are looking for what MDN means wil

And so what? It's not like they can fix the fact that there are old websites with outdated information on them, so people who are looking for what MDN means will find some outdated sources, yeah. Changing an initialism to a proper name takes time, that's not surprising.