For StaffTraveler to work, we need people who respond to incoming requests. To motivate our members to do so, we give them a credit when they submit the loads. The member who posted the request pays for this credit. Think of it as a thank you for the time and effort it took to share the loads.
The second reason we use credits is to prevent system abuse. By limiting the number of requests a member can make, we create a better environment for both members and airlines.
You can earn free credits by contributing to the community, or buy credits using an in-app purchase.
Credits do not expire.