I've been a successful trader on Localbitcoin for 3 yrs now. The only reason I'm taking on this venture is because other top traders and I have found the site to be lacking and not willing to advance and stay in pace with the ever changing P2P trading environment. Localbitcoin has plenty of pro's but it's time for some competitive markets to take place to help ensure growth overall. I do know they will be a hard adversary to go up against but if they can't make the changes the traders are asking for then they will surely lack in keeping their base.
The problem with your statements here is that you keep saying "top traders" which in my opinion is not really that important If you're planning to build a P2P platform and honestly, that gives me a feeling that the platform is going to be centralized to a certain degree.