Tested the mod, and I can still register with the wrong answer. In fact, I can register with no answer.
same here I think, checked everything, nothing wrong, same problem
* the database table was not created, or
* no questions defined.
Please go to the administration panel, the Textual Confirmation section and check that the questions exist.
My issues are people spams - not bots.
Unfortunately, there is no protection against humans. Fortunately, hand-made spam isn't massive and doesn't irritate me.