Hi, both ebay & BF can be a great place to sell your cutlery. Serious steel junkies w/ above average knife buying knowledge come here more so than not. Ebay not only draws that group for the most part, but also a HUGE world market, with many people who do not frequent forums or sites such as Bladeforums.
If you have no feedback on ebay than may I recommend selling a few other items of lesser value in order to give yourself a few positive feedbacks before selling your good stuff. If your potential ebay buyers see that you have had a few positive experiences and no negatives than it will definitely make them feel better about bidding on your items.
Also, if you do choose to sell on ebay, be sure and write down any and all facts that you or an anal person would want to know when buying a knife. Nice pictures in multiple angles & offering returns will also help your auction.
Good luck & welcome to Bladeforums!