Just to add to that: it seems like stack overflow/exchange is really helpful when people can verify for themselves whether an answer is correct or not. Did the

Just to add to that: it seems like stack overflow/exchange is really helpful when people can verify for themselves whether an answer is correct or not. Did the shell script modify the right files, does this SQL query return the right results, etc. It breaks down where beginners can't tell which of the answers is correct, which is usually the big conceptual stuff.