Perhaps Twitter's ad ban on cryptocurrency is merely Bitcoin maximalism, rather than pure anti-cryptocurrency sentiment.
In a commentary I wasn't exactly expecting so soon after the Twitter ad ban, Twitter (and Square payment processor) Jack Dorsey has come out oddly optimistic on Bitcoin, saying he sees it taking the throne of "global digital currency" within 10 years.
Nevertheless, Twitter does not yet appear to accept Bitcoin payments for advertising contracts, rendering a slight discontinuity in the logic being applied here.
Facebook, on the other hand, is far too busy with their cratering stock price and fleeing investors. As of yesterday, you can add Mozilla (the organization behind the browser Firefox) and Commerzbank to the list of advertisers who will no longer do business with Facebook.
Sources: Google, Cointelegraph, ZH, YahooFinance
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