1. I do that but the same problem happens again that scamers have all kinds of ways to fool victims.
2. I take the example of privacy coins like (XRP) and decentralized coins like (ETH), you can redefine.
3. The value of coins depends on market demand, and good coins are of course widely used by its users, including coins that have high trading volumes.
4. Not a bad idea, I also like a few coins on that list.
5. Investment is always risky, there is no safe guarantee in the investment aspect, you yourself must determine your luck in the crypto industry.
XRP adn ETH on the top exchange market and have higher volume transaction but price still down, you will know on the top exchange coin can be down and not have promised price will be higher, just invest with coin do you believe on higher price later.