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.
Yes, every investment involve risk taking but if invest in utilized coin with huge support there's still some kind of guarantee. With that been, I want you to know that XRP is nothing but a centralized coin not a privacy and long term investment on privacy coin is not advisable cause the government can raise global warning anytime or cause FUD.