Facebook initially banned crypto related ads because they wanted to stop the scammers who are running fake ICOs and stealing public money using the global reach of Facebook. However, businesses like Coinbase is no scam attempt. It's great that Facebook finally understands that!
the beginning of the banning of crypto ads had a substantial impac for the development of crypto at that time because it is undeniable that facebook is an effective means for advertising and promotion of crypto that should not need to be stopped completely but facebook can provide specific rules or regulations for crypto ads so it will filter where crypto is real and scam, this way the user facebook holder crypto does not need negative judgment to facebook