Agree. Newbies should be really careful. But I can't call it deceiving 'cause such situations is natural for the market. It looks like it's better just to hold coins and not check any crypto news, especially CoinMarketCap. And, of course, before holding, newcomers should choose some safe and user-friendly place. Like CEX which provides several layers of security and allows purchasing cryptos or exchanging major ones for altcoins, for instance, BTC for ETH: https://cex.io/eth-btc.