Imagine being a non-tech savvy user or someone who understands the world more literally than figuratively. That sort of message could be pretty confusing for them.
It depends on the type of user, even among the non-tech savvy.
A message as simple as "Sorry, reddit is receiving too much traffic right now and can't handle your request. Try loading this page later.", 99% of people will understand.
But there's that 1% of people that aren't just non-savvy, they're willfully non-savvy to the point where words stop having meaning to them just because they're referring to something related to a computer. The type where if you ask them something as simple as "Is the computer turned on?", they say they don't know. Meanwhile, the screen is showing their desktop.
"WTF AM I GOING TO JAIL?"