This is good. I am sure they take such issues serioudly as I am a Udacity scholar.
I know it is something terrible that you intend to help others and find out your work is stolen.
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We're a place where coders share, stay up-to-date and grow their careers.
This is very serious and sad thing in the same time. You should report it to Udacity.
They are aware of that and take it very serious. They have their own ways to detect plagiarism.
I also wrote them once. They told me they already know pretty well my code style!
This is good. I am sure they take such issues serioudly as I am a Udacity scholar.
I know it is something terrible that you intend to help others and find out your work is stolen.