That would not be a great decision to remove buyer request option. Talking from my experience I got my first order by sending buyer request Within the 24 hours of creating my first gig and got a few more orders after that the same way then I had to leave Fiverr for my on site job and now when I am back and full determined to resume and carry my freelancing career I have no idea where to start as I don't have buyer request's feature anymore.