[CORRECTION] 7742 went dark out of the 8299 that committed. Interesting to note: 204 of the top 250 subreddits are dark (src: save3rdpartyapps.com).
I think the best Reddit blackout trackers are the ones that highlight the most popular subreddits, like this one showing 204 of the top 250 are dark: https://save3rdpartyapps.com/
