I won't say that is doesn't makes any sense , but it is not effective espevially if you did not know things such as coding . The market won't stay the same move up and down if you set a simple bot.
But it might have different story when you use a complicated bot such as the gunbot that made by gunthar , it has quite a lot people use it .
Don't know how the bot generates you profit but so far there is no overreaction on how the bot did not work nor how it gives them profit . Just make your own conclusion about that.