Many of engineer blogs like to write about how he made the tool work, but rarely explain the back ground... like why it works, what's happening in the background, and why he chose that commands, methods, or options out of other stuff he could chose. I know it's impossible for a person to know everything, but I hope I wouldn't feel so much difficulty to find information which provides a little bit broader scope of knowledge about the tools.

Working with Drupal is like guessing the meaning of each config/options all the time.
Me: "I wanna pick only bananas from the basket of fruits"
Drupal: "Which one do you want me to look up:fruit_type,
, Type(fruit), FRUIT, fruit_field fruit_reference, fruit_id, id_reference, fruit_fruit"
Me " "