One month ago I answered this question. From my perspective, even if the question was very simple, I think I manage to find why the OP had trouble understanding the problem and provide a succesful explanation. ̶I̶ ̶e̶v̶e̶n̶ ̶g̶o̶t̶ ̶a̶n̶ ̶u̶p̶v̶o̶t̶e̶ ̶(̶w̶h̶i̶c̶h̶ ̶I̶ ̶a̶s̶s̶u̶m̶e̶ ̶c̶a̶m̶e̶ ̶f̶r̶o̶m̶ ̶t̶h̶e̶ ̶O̶P̶)
However, last week the question and my answer received downvotes. I am not worried about the downvotes themselves, but I am curious about the reasons behind them.
Has anyone had the same experience? Any ideas of why this downvotes were assigned, besides the question being to easy? Any ideas of why the downvotes came so late?
Needles to say, the downvoters didn't left any comment.