Nah. The average person was and should have been prevented from investing in Ebay until they were a publicly traded company, which required Ebay execs to share with the public enough information to have a hope of correctly valuing the investment.
Even if you don't care at all about individuals getting fleeced by scammers, there's a societal reason. We need investment capital for growth, and we need it to be reasonably sanely allocated. If some people raising capital can lie and others have to tell the truth, that puts truth-tellers at a structural disadvantage, meaning more money for fraud, less money for good investments, and a strong incentive for everybody to lie in equal amounts just to keep up.
Worse, over the long term, markets with high levels of scamming mean that most people learn to stay out of them entirely. This leads to even less capital for good investments plus society-wide misallocation of capital. E.g., people just keeping money in their mattresses. So long-term economic growth is harmed for a generation or two. Because even if you clean up a market so it is safe, it takes a long while for people to forget previous pain.
So as a society, we want what America had for decades: strongly regulated financial markets so that the average joe has a variety of safe investment options. For the few who really want to invest in the risky stuff, they can go out and get a Series 65 exam to prove they know what they're doing. [1]
[1] Process described here: https://www.natecation.com/accredited-investor-investing-sta...