The article discusses a feature called 'Send to YouTube' that was available on Apple iPhones and iPod Touches between 2009 and 2012, allowing users to upload videos directly to YouTube from the Photos app. This feature led to a 1700% increase in video uploads on YouTube during the first half of 2009. The uploaded videos were often given default filenames like 'IMG_XXXX', which can now be searched on YouTube to reveal a collection of unedited and unseen videos. These videos provide a unique glimpse into the lives of strangers, often capturing mundane and intimate moments.