Matched Dread–Reddit Communities: A Cross-Platform Dataset

This dataset supports comparative research on Dread and Reddit communities by providing matched community pairs and pseudonymized post and comment observations. Dataset Contents The dataset includes three sets of community pairs: topic-based matching (1,613 pairs), topic matching combined with Coarsened Exact Matching (43 pairs), and topic matching combined with Propensity Score Matching (57 pairs). Together, these cover 1,722 distinct communities. The data span February 15, 2018, to December 31, 2025, and contain approximately 469.5 million post and comment observations. Observation counts do not necessarily correspond to unique source items. Documentation The accompanying README.md provides an overview of the dataset and instructions for use. Additional documentation describes the matching procedures, data sources, file organization, and variable definitions. Access and Use Access is restricted to approved research use. Researchers may request access through Zenodo by providing their institutional affiliation and a brief description of their intended research. Account and content identifiers have been pseudonymized, and selected identifying patterns have been replaced. However, the retained text may still contain identifying information; pseudonymization does not guarantee anonymity. Redistribution, third-party sharing, and re-uploading of the supplied observations, including modified copies, are prohibited. Researchers must request access individually.