My parents have a business selling low-carb cookbooks online. They used to do very well because of the organic reach they had on Facebook (they have 1 million likes on their page). Posts would routinely have reach in the millions. One day Facebook changed their algorithm and their reach (and revenue) dropped over 10x. They've been limping along since then, and are planning to retire. It's tough having a single point of failure like that.
Facebook's moderation rules have determined that Keto and Low Carb aren't scientifically supported, so now tend to suppress resources that proliferate those views.
I emphatically don't agree with this, but this seems to be the line of reasoning with a lot of things. The reality that much of science is never truly "settled" doesn't really matter.
On the one hand, I feel there are a lot of leeches to society that hop on trends to pull money from unsuspecting victims and under-delivering. On the other, I am very much opposed to corporations that half the population uses daily acting as broad censors of information.
What also probably happened is that Facebook changed their algorithm to reduce organic growth to push businesses like this to spend more on ad money. They've been doing this for a few years now, and have been aggressively doing the same on Instagram.
Love or hate TikTok, the reason it's become so big is that their algorithm actually promotes organic growth instead of hindering it.
That is also entirely possible... I have seen some specific statements regarding my assertion. It's entirely possible to be either, both or a mix.
In any case, I'm using FB and Twitter far less these days than even a couple years ago. I happen to like debate, and discussion of competing ideas. Now it's all ad hominem attacks and vitriol. While I do sometimes engage, I simply don't enjoy it and don't fit well into the echo chambers.
I can't stand the censoring by tech giants. It's applied unequally, there is no recourse, and it merely serves to enforce the orthodoxy and drive dissent underground. Honestly it's like the church in the middle ages. What a dystopian moment we're living through when monopoly corporations wield that power in society.
Facebook specifically can go to hell. They're making money by selling people's precious time to advertisers at pennies on the dollar. Jewel thieves pawning stolen goods at 10% of their value is less wasteful to society as a whole. I know they don't force anyone to use their services, but neither do the tobacco companies. They just get people addicted to their product. Just because it's legal doesn't make it ethical.