[META] Proposal to establish a rule banning screenshots

We had a very efficient and funny campaign to inform the general public that screenshots are not memes.
However, people keep posting screenshots in this community. I propose that we establish a rule banning screenshots. Maybe there is a dedicated community or screenshots enthusiasts could create one.
Of course if this proposal is widely opposed, I will withdraw it and go hide in a cave, never to be heard again.
Also, cartoons are not memes either but this is a battle for another day.

Edit: added brackets to the title for clarity