I have seen sellers demand from buyers to commit (before booking the gig) to give the seller 5 stars. This should not be allowed and reported on Fiverr.
I just had a nad experience as a buyers, booking a very simple gig with someone who had all 5 stars and the gig was bad because of bad communication. Basically, the brief was to keep my logo the same, also the colours, e.g. red stays red, white lines stay etc., but to brighten and freshen it up a bit and to make the background transparent (example of how it was meant to look was provided). Easy. First draft was this: all different and very dark colours ( green was suddenly dark violet, etc.). Next: Logo had changed more (lines gone etc.). Third draft was me getting my logo back the same but the green being darker and background finally transparent. Even though it was not entirely what I asked for I gave up. This was all very frustrating and took a long time. The buyer demanded 5 stars which I reluctantly agreed to as he did some work but I wrote to him that communication was bad. The reply was: I am a good seller, so will cancel gig and you get a refund or you give me 5 stars on everything. I felt so bad being asked to give dishonest feedback and at the same time not paying someone who did “some” work. Maybe I ended up with this seller because I believed someone else’s dishonest feedback.
In the end I chose to agree with the cancellation as it is bad practice to try to coerce customers into good feedback for bad work.
So please sellers, be honest about your abilities, don’t pressurise buyers into lying to other buyers and learn from honest feedback.