You're a victim of the Law of Unintended Consequences. There's a new button that speeds up the spambanning process, which makes combatting those swarms of spammers a lot easier.
But it is a bit like using an H-Bomb. It nukes everything, and unlike the old process, not only are there fewer safeguards, it seems as if "Undo" isn't an option. Hope the technical aces here can figure something out!