Preprint: https://psyarxiv.com/6ub4d
The source data (actual Reddit posts) aren't in this repo, but they're already publicly available on Reddit. We accessed them through the [Pushshift][1] interface, the code we used to do that is in this repository. Or you can ask me for the source data.
[1]: https://ojs.aaai.org/index.php/ICWSM/article/view/7347