I am asking this question with regards to this question:
https://biology.stackexchange.com/questions/31510/why-are-the-palms-of-hand-salty
I am agreeing heads on that the data provided has not been recorded in any scientific literature (I am not able to find any). However it is easily verifiable by everyone and if false could be pointed out after which the question can be closed as false data.
However, the people who voted to close the question gave a very interesting reason:
put on hold as primarily opinion-based by GriffinEvo, poka.nandor, WYSIWYG, March Ho, Luigi 11 hours ago
Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit your question.
I was thinking that good question which do not have an answer as of now are not closed. This is what the moderator said in one of his comments here:
Suggest expanding Biology's scope
@OneFace The fact that the answer isn't known yet is not a reason to close a question. – Mad Scientist♦
Infact there were 4 people who upvoted this comment showing they agree with this idea. But my question got closed. Please explain how some questions with no answer as of yet are kept open while others are closed.
I was of the idea that opinion based close reason are for questions that are opinion based!