Since Unix is 40 years old, Unix is older than the invention of the computer mouse. (Actually, only 3 years, if Unix is from 1969 and the mouse from 1972.) How in the world did a new user do anything on Unix without copy & paste? I know they always had a text editor with copy/paste, but everything I do on Linux is copy from web browser, and paste (from the CLIPBOARD) into vim or gedit or gnome terminal. You're the same, right?
I just can't imagine loading up a man file into vim, copying & pasting code from it into a temporary buffer, and then having bash execute that buffer. Maybe they never left emacs; is that the answer?