Just an idea for the Ed.
The notes on the front page of Motoring should perhaps be amended to include a clear statement that questions asking for codes are not permitted and will be removed.
The present notes simply say "Welcome to The AnswerBank Motoring. This is the best place to ask questions about cars, vans and motorbikes - whether you need help changing parts, can't work out what the car manual "really means", or tips on dealing with the garage - we're here to help! Our friendly bunch of motoring enthusiasts will do their best to answer your questions, so why not return the favour and see what questions you can answer? If you want specific advice on the Highway Code you might want to ask your question in Road Rules."
Of course some new users may not see the note but it can only help.