Unless you are going to do a massive bounty, bounty hunters will be either professionals with 3-4 hours to devote to the solution or high schoolers with around 10-15 hours of focus. If things feel that they will take longer, they are not going to do it. Neither group will have the time to learn any WoT concepts.

This means that the more especific you get, the easier the chances of somebody completing it.

Here's a template: get code of server X, add a listener for event kind Y, which runs through the data Z, organizes in this way, calculates a score using this equation, sorts it by score and writes the result on a event kind W and sends it back to the network. You have to give them every detail.