I reviewed some late answers and found some that weren't answers. They were either comments to other answers or questions about the same/similar issue in a "forum-style". All of them were from new users with only 1 rep.
I wrote a comment to every answer, explaining those users what they did wrong and what they should do instead and flagged the answer afterwards as "Not an answer".
So the Mods reacted quite quick and deleted all of those answers. When I now visit the profile of those new users, its absolutely blank. No answer, no comments, ...
I am not sure if they will be ever be notified about my comments and if they want to go to their answers, they have to search them without having a clue about what happened (I assume they will still see them when they find the question again).
My idea was to teach them, that they have a chance to do better next time, but this seems a bit useless to me now, or are they informed in some way that their answer has been deleted and where to find them?