Unless its a very dated puzzle,its usually only a case of scrolling through a few pages and entries in the two main options Quizzes ,crosswords,think its just slowing the whole thing down to keep adding duplicated questions.Despite this its a most useful source of info.
Sheer laziness! I always check first then if I can't find it or haven't been able to solve the clue myself, then I post. It only takes a minute or two to scroll through the latest answers.