Rantings of an App's user!

So I have decided that all Applications online, whether it be for Twitter, Facebook, or Myspace should come with an Instruction/Users Manual. Just a little button on the site that explains how to use the App and what all the buttons and terminology means for that App and site.

For example, for the last half hour, I have been trying to figure out this thing called "API" on TweetDeck. (TweetDeck is an App on Twitter) Apparently from what I can gather, you only have a certain amout of "API" you can use before you run out. And if you run out, I have heard you are stalled on receiving or sending out updates on your TweetDeck. "Why?" -I have no idea. "What is API?" -I have no idea. "How do you Use the API up?" -I have no idea. And, "How can you restore the API?" -I don't know that either.
And I have yet to find someone who can give me the answer to these questions. HENCE, the reason WHY these App's should come with an instruction manual. JUST SAYIN'!