I think Twitter recently imposed strict restrictions on ICOs and cryptocurrencies. This is a serious blow to the entire cryptocurrency industry, including Bitcoin, because Twitter is currently the largest cryptocurrency information dissemination platform. Both Facebook and Twitter have taken restrictions. So which social media can now freely disseminate information on cryptocurrencies?
Microsoft/LinkedIn (biggest ad revenue for sites that allow crypto ads) and Snapchat.
For your reference:
https://www.recode.net/2018/3/19/17123674/cryptocurrency-bitcoin-advertising-ban-microsoft-twitter-google-facebook-oath-snapHave at it.