I Helped Create Facebook's Ad Machine. Here's How I'd Fix It | WIREDBut modern digital advertisers constantly tweak and experiment with ads. When big brands requested the ability to post lots of different creative, it posed a real problem. Brands wanted to show a dozen different ad variations every day, but they didn’t want to pollute their page (where all posts necessarily appear). ‘Dark posts’ were a way to shoehorn that advertiser requirement into the Pages system, allowing brands to create as many special, unseen posts as they’d like, which would only be seen by targeted audiences in their Feeds, and not to random passers-by on their page. The unfortunate term ‘dark post’ assumed a sinister air this past election, as it was assumed that these shady foreign elements, or just certain presidential candidates, were showing very different messages to different people, engaging in a cynical and hypocritical politicking. Zuckerberg’s proposes, shockingly, a solution that involves total transparency. Per his video, Facebook pages will now show each and every post, including dark ones (!), that they’ve published in whatever form, either organic or paid. It’s not entirely clear if Zuckerberg intends this for any type of ad or just those from political campaigns, but it’s mindboggling either way. Given how Facebook currently works, it would mean that a visitor to a candidate’s page—the Trump campaign, for instance, once ran 175,000 variations on its ads in a single day—would see an almost endless series of similar content.