The private subreddits went from 8400+ to now being back to 6900ish today due to the 2 day "protest" time being up.
Seems like most of the reddit mods couldn't touch grass for more than the allotted protest time, though I'm sure some subreddits go public for a good reason like asking their community whether they should go private indefinitely and all that...
Let's hope the number will go back up again tomorrow, if not then I guess reddit had a reason to not worry about this "protest".