It's good to see positive spin from the tech main stream. My take on the advertising bans is that these companies are taking these actions for two reasons that you hear little discussion over. The first is simply a defensive legal stance until it is clear where they stand with the SEC and other regulatory agencies. If they host ads to sketchy or fraudulent projects, it's not hard to imagine their legal teams telling them to be cautious. The second is more nefarious. How long before a company like Facebook spins up their own alt-coin and then makes it the only one usable on their platform or at the very least makes it much easier to use than other popular cryptos?