[Context]. Requirements Process Debt (RPD) refers to shortcomings or inefficiencies in the requirements engineering process. Through an industry-wide survey, the InsighTD project identified the causes of RPD, its effects, and practices for its prevention and mitigation. Another approach to exploring RPD is by examining gray literature (GL), i.e., sources that have not been formally published. One such source is the discourse of solution providers, a specific type of web content. Although this discourse can enhance the knowledge gained through empirical studies, no research has yet explored it. [Aims]. To investigate how public discourse has discussed the causes of RPD. [Research Method]. We elicited public discourse on RPD causes using predefined search strings on Google and Bing. We collected web addresses where discussions on RPD causes were found and applied content analysis procedures to examine the data. [Results]. Based on public discourse, we produced 128 codes for causes, 60 for effects of RPD, along with 93 preventive and 70 mitigation practices. These elements were categorized to reveal their relationships within the software development process. [Conclusion]. Our study expands the body of knowledge on RPD causes, demonstrating that GL can serve as a valuable complementary source in empirical studies.