Read and Heed
https://www.zerohedge.com/news/2018-01-30/facebook-bans-bitcoin-ico-ads
From the article:
"This policy is intentionally broad while we work to better detect deceptive and misleading advertising practices, and enforcement will begin to ramp up across our platforms including Facebook, Audience Network and Instagram. We will revisit this policy and how we enforce it as our signals improve."