Again I don't think using trading bot is a good idea at all. We should trade manually and grab our profits.
Means you know nothing about algo trading. Any strategy you can think of can be coded and executed 1000 times faster and 10 times better than any human can do. If you trading strategy is buy after resistance break with volume and daily close above, with RSI at XXX, MACD at XXX and FIB at XXX ... its like 20 lines of code and bot will scan all trading pairs, you want it to scan, 24/7, check buy/sell criteria and trade for you or just allert you.
Not even talking about arbitrage, triangular arbitrage, market making bots that are earning continuously with little to zero risk.