I agree with you, investing on altcoin is very vulnerable to scam, you have to prepare mentally when you experience the loss of money and mental stress due to altcoin scam, it is very difficult to detect altcoin that do scam, indeed most altcoin grow with dump and dump system then lost either Where.
I do not agree with your opinion. Most people who are scammed by altcoin are those who have no knowledge. They invest in a penny without a community and they expect the price to rise. That was a huge mistake