No, not really. It just posts the same thing in your journal, without your permission.
Thanks to pauraque for the update. lj_dev is apparenlty working on the security loophole. Meanwhile, don't click on the Russian meme or the "This is interesting" link. And if you want to genuinely link to something interesting, it's probably better to use a more specific text.
(And yes, Fern's enough of an idiot that she assumed it was someone just posting quickly with some interesting article to share. Damn, I know better.)