Out of interest why would anybody be shy in writing a review. Just curious to know
Two main reasons one is writing ability, some people on this board have written English as a second language or maybe they just aren't sure how to structure. I have never written a review on Amazon for example as people often sum it better than me so I would just be repeating what they've written.
Another is more complicated. Possible fear of being judged for their choices. I see big girls and I don't care, others might worry especially if say they were into a fetish like sploshing or scat. Also possibly not being comfortable with their sexuality, not everyone discusses sex openly. They might also be embarrassed about discussing women in a sexual way what might be seen as objectification.