[68c12c16]

don't worry about those downvotes...if they want to downvote, then let them downvote...

Just look at those HN karma point votes in the past few years, the upvotes for those really awesome hacking technical articles have been frequently outpaced by those downvotes for those petty trifles...If we take that as a measurement, in a certain aspect, we can see that people's hatred and acrimony grow faster than their kindness and sympathy these days...

so I've stopped worrying about those points...for the knowledge value of their corresponding text, they do not reflect as much as they used to reflect....