As of 12:56pm GMT (7:56am central time), 7742/8299 subreddits are no longer public
The information I initially posted is misleading. Thus, I have edited the title and this content area to report accurate numbers.
As @roofuskit mentioned, the 8299 number is the amount of subreddits that committed to going dark, not the total number of subreddits, which is over 3,000,000.
And as @8thiest was keen to observe, 204 of the top 250 are dark, as you can see from this site: https://save3rdpartyapps.com/
underrated comment! 7742 of some 3 million subs. big ones, yes, thank god, but not that many altogether.
and on top of this, it’s not the users, it’s the mods that took action. I’d assume reddit will make sure that this won’t ever be possible to do again.
It is more than half of the reported 13k active subs.