Since this got so much attention, I feel the need to add that the CEO of Substack is now saying that even accounting for fake views, their traffic from X has gone up substantially.

Tweet with graph: https://x.com/cjgbest/status/1985852384531394916

Here is more from an X developer: https://x.com/dinkin_flickaa/status/1985847269740990717

"Fix for false impressions going out in the next build"

EDIT: Ah your shared post seems like it accounts for that.