The filename itself ( .avi.mp4 ) is a joke on poorly masked files from the Limewire or Morpheus era, where malicious or mislabeled files often had multiple extensions to trick users [2, 3].
In many online communities, this filename is used as a placeholder or a "troll" link. A user might post a "long post" containing only this filename to imply they are sharing something shocking, taboo, or nonsensical [1, 2]. Bareback Carnaval.avi.mp4
The term "Bareback" in the title suggests adult content, which was often used as a "screamer" or shock-site trap to catch unsuspecting clickers [1]. The filename itself (