Had a similar experience after rejoining a few years ago. My account wasn't suspended for breaking guidelines AFAIK, but rather flagged as a suspicious account that required an upload of my face and driver's license. I think the account still exists in this limbo state because I'd rather not upload all of that to Facebook, and yet still not able to login to request for the account to be deleted.
We used to have a balance of power between the huge megaplatforms: they were the gatekeepers, but the worst punishment they could impose was forcing you to make a new account. Because they couldn't reliably tell us apart.
This got nuked by the combination of two things:
1. Really good facial recognition
2. Everybody owning a bootloader-locked device with a front-facing camera (so you can't splice in FaceFusion to defeat #1).
This is what made permabans possible. And it has upset the delicate balance that made things tolerable previously.
