We are lucky to receive one positive feedback in 20 sales.  Buyers don't bother any more and we too have stopped handing it out.  Serves little purpose from a sales perspective.

On the other hand if a buyer has a bad experience and ours are generally from buyers not reading the details in the description - you are guaranteed a 100% chance of negative feedback from them...

Can't wait for my first 500 word novel !  (I think I will be waiting a very very long time for that to happen).