It is unclear to me why treating ICO's as "securities" and wanting to enforce higher security standards for exchanges would be a "negative" for Bitcoin / cryptocurrencies.
With regards to securities I know neither what they are or what they mean for regulation. Since you come from the world of traditional finance you probably have a much better understanding of this than 99% of your audience so it would be much appreciated if you could focus on this topic in a future post.
With regards to exchanges it is obvious that their security has not been good enough in many cases (either that or their alleged hackings have fraudulently been conducted by themselves). Enforcing higher security standards on them is absolutely necessary.
At some point I would hope to see an end to centralized exchanges since they really pose one of the biggest liabilities for cryptocurrencies right now. Here's to hoping upcoming decentralized exchanges can enable better security and further democratize trading of cryptos.