Policymakers who design the rules that govern the internet and the technologists who implement them can often be disconnected from some of the populations affected by their products. In this study, we analyze the terms of service, community guidelines, privacy policies, and other documents officially issued by online platforms in the United States to discuss their implications with regards to a marginalized population of interest: workers in the sex industry, ranging in autonomy from sex workers with a high degree of autonomy to survivors of sex trafficking. While criminalized and stigmatized populations such as sex industry workers are underrepresented among technologists, we show how technological decision makers without subject matter knowledge or understanding of the motivations and effects on the population can unintentionally lead to harming sex industry workers. Our analysis is in line with sex industry worker-led movements to stop arresting sex industry workers, de-stigmatize sex work, and let sex industry workers remain and flourish in online life. We study over 100 online platforms from 13 platform types and discuss the laws, perceptions, and motivations behind their policies regarding the sex industry, and how these policies affect sex industry workers. We find that platforms generally view sex industry workers as either criminals, victims, spam, or entrepreneurs; we show how using the first three paradigms to characterize the entire industry can lead to stigmatization, overly general and restrictive rules, and decreased accessibility to online life. We use this study as an example to illustrate the need for a cultural shift in the technology community towards empathy and social education and provide concrete research directions towards a solution.