Brian Leiter's posts are being reported as "spam" by his academic enemies (the cancel culture crowd), which then causes FB's automated algorithms to censor them.
You can get to the original link in situ by going to this link and then going to the next link (which is the censored post):
https://leiterreports.typepad.com/blog/2020/09/great-moments-in-obscure-rock-n-roll-fuzzy-duck-just-look-around-you-1971.html
If enough people report it as "Not Spam", then FB may lift the ban. I've attached screenshots of the original post.
You can get to the original link in situ by going to this link and then going to the next link (which is the censored post):
https://leiterreports.typepad.com/blog/2020/09/great-moments-in-obscure-rock-n-roll-fuzzy-duck-just-look-around-you-1971.html
If enough people report it as "Not Spam", then FB may lift the ban. I've attached screenshots of the original post.