Crypto usually has many such ICO projects that have been scammed and many investors have lost their money. Meme coins are often scammed the main reason being their volatile market and low liquidity. Also, many meme coins do not have a strong team or technology behind them which can affect their price. Developers create a meme coin and collect money from investors. Later they close the project and run away with all the money. You should be aware of these scams before investing in meme coins.