Sarbanes-Oxley and the whole accredited investor situation is really a big shame when it comes to having an even remotely level playing field for long-term speculative investments.
Except in very rare cases, where the public markets were the only option for getting enough capital fast, IPOs currently serve more as a dumping ground for companies that have finished most of their growth. Index funds that don't care much can take over from there. Okay, it's harder to get scammed, but you lose the ability to invest in the biggest growth companies along with that.