I see people downvoted me without mentioning why, or without even reading what the article I linked to said. I have used the methods of those articles myself and they also have been proved by the author (Derek Halpern), hence he was interviewed here http://mixergy.com/derek-halpern-social-triggers-interview/
And of course as you guys know I am talking about the topic here How can I increase the perceived price value of the products?
I don't care about the fact that I got downvoted. I was wondering if it is possible to require commenting if one downvotes someone? I feel like it is fair to let someone know why they got downvoted.