Thank you.
It seems to me that for each writer who has seen their earnings slashed, there could very well be multiple writers who have seen their earnings increase.
Re boosting, I have never had a story boosted (and I never had a story curated and I only ever had one story chosen for further distribution in my three years writing here). I am not surprised that the new boosting standards don't favor your stories as the AA's messages tend, for good/appropriate reasons, to be repetetive. That is not a complaint. Just stating a fact that I understand would hamper boosts.