http://pokemondb.net/pokebase/124590/is-skull-bash-a-good-move-for-blastoise-in-gen-3 There is a BA but there are no answers... And look here for the look: http://pokemondb.net/pokebase/search?q=Is Skull Bash a good move for Blastoise in Gen 3 ? Look at the top question on that page.
And now that I answered it, the question still shows, 1 answer and BA. but my answer doesn't have the BA.
When an answer with ba is hidden the question still apparently has a ba, hidden or not. This can be removed by the answer been reshown before removing ba. So I can only assume those questions have hidden answers.