I think that Nokia should leave the feedback app in the final build, but just remove the persistent notification.
It's a perfect way of reporting bugs (doubt the software people read this forum for bugs!) That way actual logs can always be sent to them and there's a bigger chance of them being fixed.
The forum is a good way of asking other users if they have the same issue, we can then test for them ourselves. The only way bugs will go is if they are reported via the feedback app, so it's important we all do!