I recently developed another ebay seller ID. In the beginning, I could not list with a buy it now and a couple other things until I had around 10 feedbacks. I did then prompt a few buyers and sellers to give me feedback. That user name now has around 30 feedbacks and 100%, so now I would not do this.
In my regular seller name, I have 4083 feedbacks with 8571 actual positives. Again I would never ask for a feedback, since I already have plenty now.