That is in no way accurate. It says 7806 subreddits, but there are actually over 3 million subreddits, so the figure is actually only 0.24% rather than 90%. It's wonderful what you can do by just faking statistics!

I also don't see some subreddits listed there that are part of the strike.

Like reading a list of war dead. Always remember where you were and what you were doing on that fateful day when r/amateurcumsluts went dark, and the heroic sacrifices made on that hill.