Buyer requests are a race to the bottom.
Fiverr is working on replacing this feature, and the only reason they are not shutting it down at the moment is because right now new fiverr accounts that are not set up correctly can only get orders through BR.
I will start hiding all BR tips threads as I truly think they hold no real value.
Any new sellers would be better off working on their profile to get orders organically than competing with hundreds of sellers over the same request.
So the only tip re: Buyer requests worth spreading is “stop using it”.