Support for the <blink> tag was dropped in Firefox 23 in August 2013[0][1]. In February 2013, Opera had announced that it would switch from its Presto rendering engine (which supported <blink>) to WebKit (which never did). Since Internet Explorer's Trident rendering engine never supported <blink> either, this would leave Firefox's Gecko as the only rendering engine to support it.
In April 2013, Chrome forked WebKit to create its own rendering engine called Blink[3] (named, ironically, because it doesn't support the <blink> tag.)
I enjoy the irony of this site's users taking time out from showing each other javascript pdf renderers, javascript x86 emulators, and css animations to hate on <blink>. I enjoy it very much.
Today I learned . . . that God himself burned down the building that the blink tag was invented in.
Perhaps someone in Mountain View could stop by and salt the earth, just to be sure?
(Huh, looks like there are some business buildings there now. I can imagine next Tuesday morning: "Hey, what are all these boxes of salt doing in the parking lot?")