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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
I think you should consider removing this one. Solutions which could be considered 'correct' are really bad practice, and if you have to warn against it in the instructions it's probably not a good thing to expose students to. I spent quite a lot of time looking for other solutions becase I thought, "Surely he doesn't mean..."