94 upvotes, 2 direct replies (showing 2)
View submission: Content Policy Update
My bet: plaintext.
Comment by fb39ca4 at 05/08/2015 at 21:26 UTC
32 upvotes, 2 direct replies
Even if the names of each subreddit one opts into were hashed and salted with a piece of information unique to each user account, you can just try hashing the names of all the questionable subreddits you would like to investigate, and see what matches. There's a finite number of them so it would be quite practical to carry out.
Comment by BZ_Cryers at 06/08/2015 at 02:50 UTC
10 upvotes, 0 direct replies
On the SRS wiki, under "users to be reeducated".