Several years ago I visited a site that purported to have discovered the only acceptable use for the blink tag:
Schrödinger's cat is <blink>not</blink> dead.
Re:The origins of the blink HTML element
by EliAndrewC on Saturday April 21, 2012 @12:47AM
(#3870932)
I believe that this is the origin of that joke:
http://ars.userfriendly.org/cartoons/?id=20030427
The cops needs the blink tag for thier emergency ASCII,