Quote Originally Posted by Massimo
There's a few reason the responses might be short, i'll take some guesses:

1) It's so obvious to them that at first they don't even realize their answer needs more explanation.
2) They want you to ask more questions because they feel it will make you learn better.
3) The question is simple (ie. "do you shove or fold?") so they give a corresponding simple answer.
4) They don't know what to say besides the simple answer because they don't know where to start.
5) someone already answered the question well already and they just wanted to reinforce that "yes he's correct" by agreeing.

If you really really want to a more thorough answer, just keep asking more questions and they will eventually come.
6) They want you to give you just enough information to get your thought processes started off in the right direction to work out the answer for yourself.