It seems both Schrobby and I didn't think to check tag histories before giving out records for them...upon discovering the mistake, I was kinda surprised to not find an option to delete records given by oneself. Which brings up the question; can elevated users delete them, or are they forever burned into the database like DMails?
Actually, thinking on it, I USED to be able to see a (Delete) option for my records on the Record History page and no longer can. Perhaps it got axed alongside some of the other Priv+ changes recently. EDIT: Or maybe one of the Greasemonkey things I have broke it...I keep forgetting I use those. EDIT2: Yes, that was the case; for some reason Danbooru - Miscellaneous Tweaks nukes the Delete column there. Mayhaps I need to update it. I tossed a DMail to Schrobby; extreme crisis averted.