The answer from *Rotten Tomatoes**Rotten Tomatoes is essentially, “No, these audience reviews are real.”
After the reports of review supposed hacking started to spread, a representative for Rotten Tomatoes contacted the website Polygon and stated the following regarding claims of review hacking; bold emphasis is mine:
The authenticity of our critic and user scores is very important to Rotten Tomatoes and as a course of regular business, we have a team of security, network, social and database experts who closely monitor our platforms. They haven’t determined there to be any problems.
For Star Wars: The Last Jedi, we have seen an uptick in people posting written user reviews, as fans are very passionate about this movie and the franchise. The number of written reviews being posted by fans is comparable to Star Wars: The Force Awakens.