I agree,but for above post. Looks like someone asked a basic (looked like homework) question, which attracted someone to answer him. Later the question marked a

I agree,but for above post. Looks like someone asked a basic (looked like homework) question, which attracted someone to answer him. Later the question marked as homework and a year later it was removed! I don't think thats right attitude by SO. You can see lot of closed questions as 'off-topic' has more than 1 answer. SO need to find a solution to this problem. Whenever I see valid question down-voted, I used to upvote or mark it as favorite. Surely they need to review their moderators and their behaviour.