Trading using leverage is considered dangerous, although more by amateurs than by professional traders.
Leverage is more or less trading on credit. If one trades without leverage, they are trading with cash and can only lose as much as they have to risk. If one is trading with leverage, on the other hand, than they might have to deposit only $3000 to risk $10000.
In the near future, Binance will allow traders to invest in cryptocurrencies with leverage. Before the end of summer 2019, futures trading is likely to be released on Binance, with up to 20X leverage.