Are Facebook keeping data on deleted accounts?

Question

I deleted my Facebook account some time ago, maybe 2 years. I did it with the service where you ask them to delete everything. Recently I had a need to use Facebook again. From a new computer I attempted to register an account, to find I got an immediate ban! I really did need to join this group, so I used my work computer to create an account from a work email. It worked ok, so I added it to my phone app, and I got an immediate ban. I certainly never had this phone when I was on Facebook before. I was on 4g at the time, so it was nothing to do with IP addresses. I don't understand how this is possible unless Facebook withheld data about me after deletion. I also don't understand why they banned me, do they ban people who leave and rejoin? Has anyone else had this. I also note that 'due to Coronavirus' you can't appeal. This raises the issue of how Facebook can become a service that society relies on whilst arbitrarily denying access to certain users with no right of appeal?

poormystic · Accepted Answer

There's nothing wrong with your thinking... you've just discovered the real world. Facebook can not be trusted and it will someday amaze you that you ever thought otherwise. For me, first principles guarantee predatory behaviour in most relationships... there are few who are motivated by anything other than self-interest. If you want to find someone you can trust, look within yourself.