Some hands have pretty cut and dry answers that have been discussed to death. Or involve a very common misconception and we're not going to respew the entire argument every time someone new comes to the board.

For the interesting stuff, the solution to the hand isn't terribly useful because you'll probably never quite play that same hand again. The better you get at poker, the more data you have and the more true this becomes. Furtheremore, the correct answer might be something like usually do X, but sometimes do Y. If I never looked someone up with a luke-warm hand or raised with total air, my behavior would be too predictable and exploitable. Hence, it's not about the answer, but learning the correct questions and throught process to quickly come up with a good answer to entire catagories of similar poker problems.