I feel sad when I see a lot of people ask for a WordPress bridge plugin for their community. Most webmasters want the same login to be used on both WordPress and forum. Not only that, good integration between WordPress and Discussion software is very helpful for a lot of websites.
I agree that WordPress has too many things to take care of. But why there is no paid, 3rd party forum module for WordPress ? That sounds a bit strange, right ?
People always ask this, and no one knows the correct answer. By logic, there should at least one product with powerful support for WordPress. It has not happened yet.