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.