There's some German anon on /pol/ who constantly started threads with pictures of deer some time back. I'm not sure if he's still around there, but his images and webms always seemed to have a doe lying down on either a bed or a sofa. The guy would ask a simple question that's guaranteed to start flamewars, and then he'd watch everyone start fighting over either the topic or his deer obsession; he usually wouldn't post again in the same thread. And then he'd post another thread like that the next day, and the next, and the next.
Pic related is one of the images he kept reposting, there were a few others too.
I've seen his favourite pictures posted on /an/ every once in a while, but I'm not sure if that means he's a cross-poster here, or if other people are posting those images.