It's random image topic and it's a random image. I wouldn't say it's a shitpost, at least that's not the intention, the intention was for the image to appear so randomly that it became fun. I think shitposts such as quoting one-self ten times in ten posts or copy-pasting a page and dumping it in a post are pointless and stupid and sadly tend to bury the tiny fraction of meaningful, fun or interesting content that's still left here in EE.
But I have the impression most people here like shitposting, and Dan doesn't seem to care, so I'm not going to moderate it. Tell me if I'm wrong though.