And animated gifs. They all have thier uses though. It's harder to think anything useful for blink.

The cops needs the blink tag for thier emergency ASCII,

       _<blink>o</blink>___
  ____/ _| _ \___
 | o           o |

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.

I believe that this is the origin of that joke: http://ars.userfriendly.org/cartoons/?id=20030427

Much better than the Ad that swings into the middle of the browser screen tag

If it were the worst thing we had to deal with nowadays, do you think there'd be a Chrome extension called NoBlink?

It's annoying enough that disabling blink is a built-in feature in Firefox

Perhaps, but those allow us to do things we otherwise couldn't. The blink tag just made annoying blinky text.