As expected, nobody cares about "reader mode". Only once in my life has it ever come in handy... It was a website that was so badly designed I swore never to go back to it ever again.

I forget what it was but apparently I wasn't the only one and thus, it must've died a fast death as I haven't seen it ever again (otherwise I'd remember).

Basically, any website that gets users so frustrated that they resort to reader/simplified mode isn't going to last very long. If I had my way I would change the messages:

"This website appears to be total shit. Do you want Firefox to try to fix it so your eyes don't bleed trying to get through it?"

I want an extension that does this, actually! It doesn't need to actually modify the page. Just give me a virtual assistant to comiserate with...

"The people who made this website should have their browser's back button removed entirely as punishment for erecting this horror!"