[roenxi]

Shadowbans are actually a bit more than that - your comments are invisible unless someone with a high karma threshold puts a little effort in to mark them as reasonable. People can't actually see most of your comments.

I'd recommend creating a new account. Or you could email the mods (I forget the email but it is publicly available somewhere) if the user name has sentimental value. In your case it is clear that a shadowban is inappropriate.