Also, depending on their QA testing schedule, certain bugs will be found and others wont. I highly doubt their testers are playing the game the same way we do. They probably have some QA procedures set and go through and sign off on what they tested. Then theres the part where QA finds an issue late in the cycle and the developers have to decide if it's a showstopper. Something that literally will prevent the basic functions of the game from working. Anything else probably gets a severity and worked on from there. This has been my experience at the company I work for.