Trading bots can only be useful if you have a pre- knowledge about trading so you can always confirm each trade. Because trading bots doesn't guarantee profit. This bots is a reflection of someone's strategy and since no strategy is 100% safe, it's more dangerous depending on bots alone to take up trades for you because it could be very disastrous when it goes against the trend
Due to its 100% insecure nature, reputable bot creators are sure to regularly update their strategies, and when we ask for brains from someone, their value will never be cheap, most of the good bots will come from paid sources. Obviously a bad situation and reacting in an opposite way to the trend is less likely to happen in this case but with the connection to such frequent updates, it's hard to avoid suspicions about our assets being revealed and stolen, knowledge cells also become lazy under the efforts of others, not useful for future work with trading