This automatic bots that are being posted in public will never be profitable, and I will explain why.
Once the trading bot goes public and everybody uses it, it means that you have a lot of people who trades the same way as you in the exchange, so you can't actually beat them, you will be equals and you will end up losing money.
On the other hand, you are risking your funds here because the bot operator can just choose to use all it's users money  to manipulate some coin's price.