This is yet another example of 'damned if you do and damned if you don't. If Facebook did literally no moderation whatsoever, then there would be (and indeed was, in the past) a furor of complaint over their callous indifference to society. The second Facebook censors anything, they are immediately hit with a furor of complaint that, under those standards, they are obligated to censor some slightly less objectionable thing. They resist for a while, then cave in, and the cycle repeats. For the past 10 years this has been a reliable mine of outrage porn, but not a cause of real progress.