I frequent several other similar sites where the mods have the ability to move threads into the "correct" section. Typically, the dialogue goes:
"This is a crossword question. I've moved it into the Crosswords section. Please post crossword questions in the Crossword section from now on."
"This is the second crossword thread you've started in the wrong section. I've moved it into the Crossword section. Doing it again will result in your suspension."