For sure i believe that there are created by some whale that want to other people will FOMO so they can gain some profit. And because the manipulation like pump and dump is not illegal at crypto market. Like yesterday i have seen there is some coin that gain rapidly maybe pump if i don't forget until 150% but only in 1 exchange in another exchange it doesn't pump. Whales only want to get profit with it. And you can see at coinmarketcap if there any manipulation the price will be tag with *** this mean" *** Price/Volume Excluded - Outlier Detected".So if we know that market being manipulated we shouldn't FOMO. Just analysis market by your own if not you will be eat by Whales