It does make sense for some people. See my comment answering @smooth, below.

@dantheman I'm interested to know why you upvoted the comment above but not the post, but did upvote the post by @furion? In his post @furion asked the question of profitability and came to the opposite conclusion, which I corrected in this post. I see that as adding value. Or is it the conclusion your downvoting? Had the conclusion in this post been the opposite, would I now be sitting on $500 as well?