I agree that ICOs and centralized exchanges (ones with custody of your funds) require more regulations, but I also know how the market responds to regulation and it generally isn't positive. The meeting did touch on some of your concerns. If Bitcoin is viewed as a replacement for dollar and hence posed as a systemic risk, you can expect much harsher responses from the government if they take it seriously. One of the senators discussed the issues associated with taxing cryptocurrencies, especially if goods are bought with it and salaries are paid in it. And again, an important narrative from the meeting was the idea that blockchain, not Bitcoin, is the important innovation here.