It's a skin takeover ad that turns the skin into an animated (!) Old Spice ad. I encountered this four times in a row while browsing the wiki, after which it was switched out for a regular, non-animated skin takeover ad. It's particularly bad because of our transparent background, making it virtually impossible to pay attention to the page (to be clear, the area behind the content area was completely animated).
I always block ads on Wikia, so I was surprised to see things had gotten this bad. I don't appreciate our entire content area being turned into an ad - if one thing is sacred, that's it. In light of this, I think we should get rid of our transparent article background, and instead use an opaque, white background. Any thoughts?