[How does Fiverr use the private feedback?]

The form only allows you to rate satisfaction from one star to five. Then it asks if you have used what was delivered. It doesn’t seem to indicate whether the seller did anything wrong, but whether or not you thought it was good quality.

maybe its just for you(as buyer) & for fiverr customer service to get to know about a particular seller personally like “how was your experience is he good can we prompt him more do you think he completed the work on time, is his behavior was good during the work process etc,…”