You can post a CPA affiliate offer on RapidWorkers. I need to warn that you need to be careful when you want to use that strategy because it's grey hat tactics. The app allows you to create tasks that users can complete for payment. It's like you are buying traffic from Rapid worker to your CPA affiliate offer. You should create tasks related to your CPA offers and promote them within the app. Make sure your tasks follow the app’s guidelines and within the line of the offer you promote. You can use tasks like sign-ups, surveys, or downloads to drive traffic to your offers. Keep in mind that you need to ensure your offer is appealing and easy for workers to complete. With the right approach, RapidWorkers can help you drive conversions for your CPA affiliate offers.