I think your suggestion would not be the best solution for a few reasons. For example, Many games require you to edit the game or set up the controls in a specific way to be able to use the profile as intended. That would likely cause a lot of confusion and frustration that would be unfairly attributed to pinnacle Game Profiler.
Most users wouldn't know that they need to visit the appropriate forum thread for instructions for there profile after it was automatically updated, my own Oblivion profile being a perfect example. On top of that, profiles are all over the map with regard to quality and many would not be appropriate to be included as an automatic update regardless of there popularity.
Only profiles from certain "proven" users should be included as an automatic update in order to insure that certain standard of quality are met and Pinnacle users get an experience that is worthy of being endorsed by Power up Software.
...the artist formerly known as cid67