What about visualizations of analysis of the data (say using an R Shiny app), ensuring of course, that the raw data could not be downloaded?
Visualizations and analysis of the data are allowed and encouraged. If you are a student you should submit to the challenge as well!
Thanks for the clarification! I had done an analysis of Amazon review data of a similar size ( http://minimaxir.com/2014/06/reviewing-reviews/ ) so it would be interesting to compare/contrast review data and behavior between industries.