To get adult traffic like Craigslist, focus on creating high-quality content that appeals to your audience. You need to provide services or ads that cater to adult users. Platforms like Craigslist succeed due to their simple and effective ad categories. You can try to replicate this by having clear sections for different types of adult content on your site. Use targeted SEO techniques to reach adult users who are searching for related topics. You can also use adult traffic networks and paid ads on relevant platforms to drive traffic. Consistency and understanding your target audience are key.