I should start by pointing out that the article does not make it very clear that all Postmates also receive a commission for every delivery they are doing. Currently this commission is between 60%-80% of the delivery fee.

To answer your question about what would prevent Postmates from taking on too many jobs i would need to explain our dispatch in all details but the answer lies in great software.

Finally, the tip is not required on our platform and all Postmates get compensated very, very fair, even without any tip.