I can see the interest in getting people to openly express what they think of you, your work, your outlook, whether they see any of it positively or negatively. But to specifically request hate-comments? Most hate-speech or responses to a person are fast, emotional and generally unreasoned. And they give the hater some kind of instant gratification, like a sneeze. It’s actually quite a lazy substitute for real engagement with what the hatee is saying or creating. That takes more time and effort and deeper thinking.