Upon reaching a goal (score) the developer would pay money to the user. Let's say that everything could be divided into different objectives: in some of these the developer would pay the user in money in others in time of use of the bot. It is obvious that this strategy could be used in the bot immediately and always inside the bot the user could sell it to other users. It might work?
i don't think you can find that many traders who would be interested in something like this. for traders who have the opportunity to make a lot of money, this type of small payments is not really attractive. if they want a bot they want one that has certain highly advanced features that are easy to use.