You suck at closing questions. Very useful and popular onesVery useful and popular ones are closed and locked because they are product recommendations.
The motivation is that this type of question would attract spam, which in my experience has never been a problem because those who post good answers generally care enough about their reputation to not post spam, and spam answers get downvoted or deleted. What happens in actuality is that locked questions can't get updates, and the hordes of new users who land on SF via Google searches enjoy antiquated answers, or ones that have become wrong but nobody is able to correct.