Does the page still bleed?

via Austin Kleon

Let us now travel back in time:

Remember when you wrote on paper, and your teacher/boss/editor would mark up your work with so much red ink you'd go dizzy? "The page is bleeding" you'd say, sigh, and then gather strength to make the changes.

Remember this? 

Recently, I marked up a manuscript and the young writer stared at me with a mix of horror and confusion. I had ruined her work with the ugly marks of a mysterious language.

Is this editing shorthand — long used by reporters and editors — now extinct? Does anyone write on paper anymore?

It's okay, you can tell me: Am I the last one out, and it's time to turn off the lights?