Worst experience: I used constantly Cobinhood exchange during the last 2 years. A few months ago Cobinhood became a scam, people cannot widthraw their funds, Telegram chat is blocked and their token (COB) felt to near zero. I always believed this exchange will come back to life, I constantly refused to see the signs indicating it's scam potential and now I'm still stuck there with a few hundred bucks that I won't see them back most probably.
This history repeats itself over and over again with so many different exchanges around the globe. Simple put, don't keep any funds in exchanges. Buy, move to your wallet. Want to sell? Transfer to exchange, sell, withdrawal fiat. Wanna buy again? Transfer fiat to exchange.
I don't understand why people keep funds in those exchanges.