Regardless, hopefully a valuable lesson in mirroring public contributions to other source control systems (Gitlab, Codeberg, etc.) is learned.
Point taken about mirroring to Codeberg (or sr.ht), and this is something I was already planning on doing in terms of migration. At the same time, if there was any way to restore my GitHub, that would certainly simplify all of my next steps.
More than my own repos, I'm mainly concerned about my contributions to others. I've gotten hired twice just by someone contacting me from an issue that I had fixed on a GitHub discussion and that's no longer there.
I would even be willing to freeze my GitHub in its current state, restoring it but not allowing any further activity on it. I just want the record of to be able to say, "Hey, I fixed this issue in node-tar" or "I fixed this issue in Puppeteer Extra". Note: Edited OP to include my SO.
As a developer who's still early in their career, my hope is that someone will see this, understand the existential weight of having all that work disappear, and be sympathetic to a request for a second chance.