I'm glad to hear OP at least attempted WoT inside a centralized forum. I think one of the problems with WoT is that many projects hard-couple it to a distributed approach to software that utilizes it. Since OP didn't take that approach I'd be curious to know what didn't work.
it wasn't a design decision to link the WoT to a single forum -- I was just playing around and didn't want to go through the hoops of integrated with an external social network
I'm also working on a forum system that includes basic WoT features, and would be grateful for anything you share.
(Prototype link is in my profile if you want to play with the current prototype.)