There are such projects, and in fact - I mention two of them. If you want to obtain data, Related subreddits shared it (150GB or so): https://github.com/anvaka

There are such projects, and in fact - I mention two of them. If you want to obtain data, Related subreddits shared it (150GB or so): https://github.com/anvaka/sayit https://github.com/anvaka/sayit