lets see, what about telling you to invest into well diversified portfolio and prepare for retirement, but then there is no refund to you after you had dumped life saving into the listed companies, leaving you speechless and wondering your life choice... "what am I fighting for? what am I investing for? is the company I invested like a prostitute that entertain me for a while and when they leave, you are left wondering your life choice" idk which is the worse kind of shady thing, it seem nobody care or even doubt whether no refund is shady practice at all, it has become the accepted part and parcel of life to have no refund.
I still do not understand what are you talking about? Are you talking about fraud within the stock market? White collar crime?
It makes me think of the case of the company called Nikola, which was quite a big scandal some years ago, anyone who was said to invest in that company got their money turned into steam.
Though, you must admit that within the stock market were are companies and options which are legitimate and have high liquidity for the purchase and the selling of stocks.
Obviously, it is a very different situation one person doing their own research on stocks and investments than blindly taking the suggestions of a person on the social media or a big fund manager which is throwing "free" investment advice, we all know those advice are subtle market manipulation at the very least.
I assume that is what you mean? Unless you are calling for a complete closure of the stock market.