On most other SE sites, particularly Stack Overflow, at least 5 people are required in order to close a question.
How come I see so many questions on Philosophy.SE that have been closed by only one person? Is this due to a lack of moderators? Or due to being a Beta site? Even the FAQ says questions can only be closed after reaching 5 close votes.
Also, I'm not trying to say anything as to whether or not a question should be closed, but rather the process by which an inappropriate question is closed.