Facebook's newest ad policy also prohibits promotions for binary options and initial coin offerings (ICOs) -- the advertisements that seem like they're shouted by an online carnival barker. "New ICO! Buy tokens at a 15 percent discount NOW!" reads one example on Facebook's blog post.

Before you cry that some scammers are ruining the crypto game for everyone, Facebook admitted this policy is 'intentionally broad while we work to better detect deceptive and misleading advertising practices.' They'll begin enforcing this policy 'soon' on the core platform, Instagram, and its ad-placing Audience Network, and will revisit it after their signals improve. In the meantime, if you see a shady ad that Facebook's algorithm didn't catch, you can always report it by clicking in the upper-right corner.