Referral programs are a well-known way platforms grow their user base, and some do reward freelancers for bringing in new clients or other workers. The details vary quite a bit from one platform to another, including how much the bonus is, when it gets paid, and whether it applies to clients specifically or just new signups in general. It can be a nice extra income stream if the program is structured well. Does your platform have an active referral program, and have you ever earned anything from it?