It's interesting but apparently LJ saves up a userpic you try to upload but fail to for one reason or another. In my case, I see an icon I tried to put up that was animated but too big. I end up seeing a blowup version of it with a lot of distortion, which sort of makes sense since it was too big. The weird thing is, it wasn't the last too large icon I tried to upload by a longshot. It's like LJ just randomly saved one whoopsy along the line and spits it back out at you.
This has apparently caused some paniced freakouts on some LJ's as I'm looking around. So far I haven't seen anything truly lolz-worthly. Along the lines of, 'OMG! How did you get that animated picture of me boinking the babysitter?!?'.
Hattip to minxy_baby