I think that this sounds like a great idea, a site where you'd see a good number of people visit.
I really don't blame Kiper and them too much because it really is a daunting process to recognize the needs of every team, weigh each person in the draft, write articles about them, do interviews, etc. That said, in terms of actually truly being on point with each team, they tend to use the bubble method and slot this player to this team based on need.
Everyone on this forum screamed OLB with Carpenter and Lawson being the two favorites. From what it sounds like in the war room, this was the case as well. It wasn't a secret, we were just more intuned to it.
I think the big issue here will be how to designate the draft king of each respective team. With 32 teams and 32 different lives, chances are that people might not be able to always post one specific board since lives change. You can always replace them, but in terms of continuity, sometimes it would be tough to find that one guy who can be a fixture and voice for a team for a few years.
All in all, it sounds similar to realgm.com though you can shift the focus to target prospects and the draft more than the overall picture.
I know I'd visit.