Starting about a month ago FB changed all their algorithms and a lot of independent artists are seeing 50%+ reductions in engagement across Instagram and Facebook.
I have artistic hobby pursuits and can confirm. Many times I'll post a piece of work and my friends won't even see it in their feeds because FB is gatekeeping content between artists and voluntary followers now, in favor of "influencer" content from cash-cow accounts that don't produce any art of their own.
It's sickening to say the least. Yes it's legal as of now but we should really be having a discussion about whether it should be okay to have a non-transparent gatekeeping algorithm between people who mutually chose to follow each other.
Personally I'd prefer that if if someone voluntarily follows someone, they should have a legal obligation to not hinder any communication. That person chose to subscribe, and they can choose to unsubscribe at any time. What they are doing is tantamount to the USPS paging through your magazine subscriptions and trashing some of them as the mailman feels that day.
Why does your speech come before Facebook's speech on Facebook's private platform?
Is auto-block a single post really censorship? Did they block everything from this person? Did they stop this person from similar speech elsewhere?
2) It's perfectly fair, and a good idea, to call out a thing as bad even if it's legal.