Well  nothing is wrong with using any of the two. Some posts in here are saying that this or that are risky and not preferable. Yes, it is risky, but not to the point that we justified everything as bad to be use. There are tons of bot that isn't that risk taking in trading, as risk is already involved and normal in trading. Bots are just mere programs that reads and analyze the market and places orders and even based on its readings, in which at first the owner are aware of. Meanwhile, copying live trader is also not a bad idea. There are tons of traders that are just part time traders that has their own different field jobs, in which copy trade is always their best option when they still wanted to earn a little just by entrusting his trades onto the trades of the others.

Overall, I would really bet the use of any  of the two, depending on the situation and the risk appetite of the trader. Use the bot only if you wanted to make trading much easier, yet be aware that it is riskier. And user copy-trade, if and only if you know some trader that are good and you could take the risk imitating both of his loss and gains.