of course, I have experienced the occurrence of such manipulations, I once traded on an exchanger and the price of the token I had was manipulated by the existence of fake trading volumes, fake trading history and others.
It is true that the market can be manipulated for a moment. I've also seen events like you said. In my opinion, it is certainly very detrimental to certain token owners. So in the future we may have to avoid market manipulation as happened before.