I used to believe that it's because some of the questions are not objective. However, after seeing some very good discussions closed, I really just think that

I used to believe that it's because some of the questions are not objective. However, after seeing some very good discussions closed, I really just think that the admins get off on it. It's even worse at programmers.stackexchange.com It's a bad policy, and it leads to a lot of frustration by a lot of people.