Many of those alt coins that do not work well or projects that do not come true are seen at the end of the day scam. They should be real projects and coins for many years as a top coinmarketcap and must be invested well. Should be verified and invested.
there are not many new projects that can maintain their existence on the market. the altcoin has finished trading, it may disappear from the talk of the person after one year the project is running. then the developer disappears and no one will know about it.