Although mining periodically produces new cryptocurrency units, most cryptocurrencies are designed to have a finite supply — a key guarantor of value.
Spot trading means you’re not technically “buying” the cryptocurrency, but instead trading your USD for it through either a market or a limit order. A market order means you agree to trade for the currency at the current market price. A limit order lets you put in a designated price at which you want the trade to occur, and when the currency reaches that price, the trade happens automatically. These orders then incur “maker” (for limit orders) or “taker” (for market orders) fees — though on Binance.US, there’s just a standard 0.1% fee.

One key point to note about Safemoon crypto is that the developers haven’t really described any real-world use cases yet. The Safemoon protocol was hyped hugely by celebrities back in May, causing retail investors to jump on the bandwagon and push price higher. Following this, the price fell dramatically, leading many to claim that Safemoon was a ‘pump and dump’ scheme designed to make certain investors rich.
Biais, B., C. Bisiere, M. Bouvard, C. Casamatta, and A. J. Menkveld (2018), “Equilibrium Bitcoin pricing”, Working paper .