I read a couple of these last night (I've read others long ago), not particularly scary ones - 427 and 682... and then dreamt I read more, including one that did have a "shocker" animation (after which I remember cursing you for suggesting they were rare!), and then one with a high-res gif/video of a complex artifact I can remember the vague form of - somewhat like a grey bowling-pin with brightly colored shapes rotating along its axis - abstract, but almost clownish and mundane, but still creeped me out in-dream far more than any actual article.