This question has 4 votes to close as being an exact duplicate of this one. Within an hour of the question being asked, someone voted to close it as an exact duplicate AND Davide Giraudo pointed out, humbly, that it wasn't a duplicate at all. (Note in one case, the inequality is false and in the other case it is not!) Yet, the question still ended up with 4 close votes. I don't know if all 4 were before Davide's comment or not.
Now, I am not posting this to point out the errors of any specific people, as I'm not exactly sure who is involved. And, I'm sure I've probably done something similar in the past as well. But, I don't understand how 4 different people voted to close it without one realizing it was a completely different question with a different answer (in one case, the inequality is not true and in the other it is). Did none of them actually look?
I just want to ask, can we please be a little more careful and actually take 30 seconds to look at the question and the possible duplicate before voting? I have suggested the same at the question itself, but that is only going to apply to the few people who happened to view the question after I made the comments. You may have enough reputation to vote to close, but you still have a responsibility to be thorough enough as to actually look at the questions before you vote.