A few days ago, my Facebook account was disabled by Facebook. No warning. No explanation. No response when I wrote to them with inquiries using their proper forms, etc. After a couple days, I wrote again.
I just received this note from Facebook after I made inquiries:
I sincerely apologize for the inconvenience you have experienced. Your account was disabled in error. Your account has been reactivated and you will now be able to log in.
Thanks for contacting Facebook,
One the other hand, when I try to log in, I get the message "Account disabled".