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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.
Ranks of approved katas won't be changed so it's useless to post complaining for that.
Please stop posting suggestion like this. Those are not suggestions for the kata, but spoilers that have nothing to do here. Users are supposed to solve the katas by themselves, not looking at Discourse page.
Please read this: https://docs.codewars.com/training/troubleshooting#post-discourse