Traders see when prices will rise and when prices will fall.
If traders can see when the BTC prices rise or fall, then they would be pretty rich, but instead traders are generally losers - especially when it comes to bitcoin and especially when it comes to longer time frames such as 1-2 cycles or more into the future.
Sure, traders try to predict which way the BTC price is going to go, and then they move themselves in and out of bitcoin based on their anticipations of which way the BTC price will go. It's a losers game, even if some of them might have long streaks of success, it does not take too many times being wrong before much if not all of the gains end up getting wiped out and they end up in a worse position than if they just bought bitcoin consistently over the years and otherwise just held bitcoin without selling it.
Traders don't have the ability to see into the future and tell 9f the price will pump or dump, they are only limited to smaller time frames which could be guessed or making use of some random technical analysis to tell the price movement's directly. If traders could see the future of price movement don't you think that more than half of the world population would want to be a trader? Besides traders loss more than a regular bitcoin holder especially when it comes to pump and dump shitcoins. From my perspective, I view trading as another form of gambling where your knowledge, emotion/instincts, and luck has to be present before you can make a win. I know of few person who have started trading yet all their stories always end up in loses, and trust me these dudes have spent countless working hours studying and making research about a specific project before they start hiting the buy or sell buttons yet they'll prefer to keep losing than start accumulating bitcoin which is a wrong ideology.
Everything is speculation when it comes on trading although some may say that they can do something to increase their chance to win, but everything they do doesn't actually give any guarantee that's why we usually see people quit into trading because that is not sustainable activity.
People usually got hype up with trading when they are new, but when they test out how technical it is and how hard to earn sustainable profits there for sure they end up quitting. That's why I don't recommend this game because the nature of risk and people would end up losing rather than gaining especially if they are lame or have greedy thoughts on each trade they executed.
Same as you I see trading stories end up to losing since this is what I experience to.