Didnt read up the article that had been connected into that link but to answer up this question about trading bots then its just really for pure automation.People had really just that kind of common mindset which would really be ending up on a mistake and lost their money just because they do put up too much trust on things that shouldnt really be believed on.

Yes, it can automate your strategy and thats how it works or its main purpose.Some are just using it even they do lack of experience which in result into a mess out automated trading.
Regrets what comes after and whining that bots are shit and doesnt work.

If they do just realize that it is still needing its users knowledge on how to handle it then these bots are quite useful but there are things that bots
cant able to handle which is on that situational change of mind or decisions which can be only altered by human itself.