> To lose 95.8% of your site (judged by the 8467 out of 8838 subreddits gone dark)

That's out of the 8838 that made a pledge to go dark. Those ~400 are just the ones that went "restricted" (read-only) instead of private, or flaked on the pledge.

There are over a million subreddits, the blackout doesn't even reach one percent of them.