This is not true, on the same Bittrex or Poloniex, such fitbels do not occur, and manipulations from Binance always flash in the news, one can recall one of the most obvious manipulations of 2019, Waves.
https://cryptopotato.com/very-expensive-mistake-waves-flash-crash-by-99-9-to-10-satoshi-on-binance/
Waves then dropped 99.99% in an instant. Is this a lack of liquidity in your opinion? Does this happen everywhere? Oh, let's do without fairy tales. This kind of chaos happens only on Binance.
This is a literal example of lack of liquidity combined with fat fingers. And when stop losses activate, it can become an extreme example like this but huge wicks are not unique. The fact that it went so down also means that this fat fingering moron lost a lot of money. If it would be manipulation the price wouldn't just come back in an instant and no one in their right mind would like to use such an expensive and ineffective tactics for manipulation. In places that don't offer any protection against fat fingering and have low liquidity, you can potentially make a lot of money by setting lot of low buy orders.
But this shameful manipulation of the DeFi token rating, is it also for the benefit of the service?
WSB is not a coin or a token, it was a support for wallstreetbets reddit group for their fight against shorters. Price was a joke about gamestop price that you would have seen if clicked it.
Have you also seen that they have removed that?