https://www.techdirt.com/articles/20210312/15324646413/content-moderation-case-study-googles-ad-policies-inadvertently-block-religious-organizations-advertising-youtube-2019.shtml

Summary: Google's ad service offers purchasers access to millions of users, including those viewing videos on YouTube. But its policies -- meant to prevent abuse, fraud, harassment, or targeting of certain demographics -- sometimes appear to prevent legitimate organizations from doing something as simple as informing others of their existence.

Chad Robichaux, the founder of Christian veterans support nonprofit Mighty Oaks, wanted to reach out to veterans who might need his services. But his attempt to purchase YouTube ads was rejected by Google's Ad service for a seemingly strange reason.