Ref Wikipedia
Snakeoil: the most common usage of the phrase is as a derogatory term for quack medicine. The expression is also applied metaphorically to any product with exaggerated marketing but questionable or unverifiable quality or benefit.
Please explain how I am posting this from an apple product, how I make a living using apple products and how I enjoy and get much benefit for many years from all apple products if it is snakeoil ?????
I think the fact that he registered using the name of a Harry Potter character tells us all we need to know. I'm sure he's trolling instead of doing his geometry homework.