Like ICO scammers, there are market scammers who trap innocent investors with deceive articles in regular medias and then pump and dump in exchanges. Ripple must be one good example for those kind of scenario. This is not individual's problem but for part of community itself. Yes, they are able to misguide large number of community members through open discussion on this forum and few articles in medium kind of reputed media.

Their big weapon is their capability to move markets on their own direction. These type of people are easily becoming whales and with their plans of re-investing they keep manipulating markets and keep deceiving innocent traders and investors. Sticking with highly reputed and decentralized coins must be the only possible solution as per my experience.