Well they say that:
"As of Wednesday morning, more than 6,000 subreddits remained inaccessible and in private mode after what began as a two-day voluntary shutdown. The blackout includes popular forums such as r/aww, r/videos and r/music, each of which claims more than 25 million subscribers on the platform. "
Source: https://edition.cnn.com/2023/06/14/tech/reddit-blackout/index.html
I haven't touched Reddit since the blackout began and I don't think I'm going to do it again. Maybe one more time just to delete my account.