How profitable is trading bots?

As an avid investor in the crypto market, I'm often intrigued by the potential of trading bots. Could you elaborate on their profitability? Do they offer consistent returns, or are they subject to market fluctuations? What factors determine their success, and how do they compare to manual trading? Furthermore, are there any specific bot platforms or strategies that have proven more lucrative? Lastly, what are the risks associated with relying solely on trading bots, and how can investors mitigate these risks? I'd appreciate a comprehensive overview of the profitability of trading bots in the crypto market.