It's sad, because for most people the use-case for an m-dash is relatively narrow—a parenthetic interjection relevant to the topic (but not sufficiently off-topic for brackets), and needing a subtle call to authority—it mostly popped up in academic or pseudo intellectual non-fiction, or in faulknerian ponderous fiction, but also as a hapless crutch for endlesss neurodivergent layers of qualification.
So I am going to claim disability discrimination about this brutal and unjust sudden boycott, on behalf of crew #adhd.
Edit: shits and giggles