Robert Feder is back on Facebook as of 1/7 (I just noticed it) and he explained:
"It’s good to be back.
For the last seven days, I have been missing from this space. Without explanation Meta permanently disabled my Facebook account on New Year's Eve, saying it “doesn’t follow our Community Standards on account integrity.” I had no access to any of my content or contacts. Poof — I was gone.
The story would have ended there if not for my friend Neil Steinberg, who took up my cause in his Sun-Times column and got someone at Facebook to take pity on me. Legacy media still matters.
As abruptly as I was banished, I learned I was restored without any human contact with Facebook. The news came this morning in a text from Neil, who wrote simply: “Meta just called me — you’re good to go.” And so I was."

RF has more...