I read them...but I only read one post that seemed like an issue. The one where the game crashes on the start up but the tester did not say anything else.
Most of the post are just not checking the certification process. The certification process (such as ratings and countries sold) is documented very well and extensively on Microsoft.
If you never submitted to windows before you should have submitted a small tester app to see what the process is like. You could have even been working on your main app while the tester is being submitted.
My first app failed multiple times and took 3 weeks to fully submit. My second app took 1 try and about 3 days tops. The difference? I learned the process and actually read all the requirements.