I think you forgot the buy in? But yes this is one way, of speculating. You should have a basis for any trades that you have otherwise you're just gambling like in the casino.
LOL I dont think the person you quoted has anything else to do than shitposting generic posts.
Yes most people in this forum dont even own any bitcoin and are just wannabes who want to get into crypto hoping it will moon like last year. Its true that if you are going to buy then do so at a dump and not at the pump. People accidentally do the opposite because when the price is stagnant people are not interested in it, the interest grows when the pump starts. Thats the reason for getting FOMOed.