I have been watching this thread for some time now and I have been a wee bit concerned by the tone the thread has taken at times.
The crux of the matter seems to be that some gamers find the game too challenging in the first part then not challenging enough.
The completion of the puzzles followed by the open end is what many people like about the game. This is not Grand Theft Auto and at half the price who could expect it to be.
The trial period allows you to see if the game is suitable for you and as far as I am concerned, any complaint you have after a trial which can last up to a week is more to do with personal taste than any serious issues with the game.
Gamers of VV3 have a choice: they can play the game on their own, working out how to keep their tribes from starving (this is a problem solving game - without problems there would be no game) or they can check out the forum for help.
Every consumer has rights with regard to their purchasing power. However, those rights come with responsibilities also.