This question already has an answer here:
After I got 3 good answers and many comments, my question was closed as a duplicate of this one:
But that question has no answers, just comments. Is this a valid closure?
Also, why did my question receive a score of -5 and the linked question got a score of +5, even both are similar and discussing the same subject? Is there any problem with my question?
(Note: I just want to get a better idea about Stack Overflow. That's why I'm asking for an explanation)