Why you don't use a transparent bug tracking system? So you can avoid double posts of bugs for example, you can give workarounds for existing bugs and so on. I think this is very useful for both sides.
We developed an own bug tracker especially for this purpose and we are using it very intensive these days. We also added the known bugs and screenshots there. But it's still a "closed" system, because we cannot allow that user add their bugs and wishes there without caring about structure and logics.

It can also be very frustrating to see into unsorted lists and thousands of individual wishes.
So we will add bugs and wishes manually.
Maybe you will get an insight to the added tickets one day... but we don't have this function yet.
Maybe we will also make our new bugtracker system open for the public - so that you can use it for your own projects. It's a great bug and ticket tracker and a help for anybody who is creating a big game.