Trust in this strategy is very dangerous, because if you are late, you will buy at the top and everyone will sell and you will be at a loss. The person never knows what the big price increase will be. And there is the case that many altcoins are listed in shady exchange and if the person follow this group and hear that altcoin X is going to have a big pump but that same altcoin is listed only in the shady exchanges and that person decides to go and deposit their currencies in the shady exchange , then the person may run the risk of losing all their coins.
Yeah I am not disagree with you mate. That's why traders need own experience to buy his/her targeted trading asset in right time. Specially event of a projects have got proper chances for traders. But its a matter of concern that in many social medias and telegram channels we got fake news most of the time. So its a wise decision to gather valid info of a coin/token before making investment.