Because from love to hate there is only one step. When you trust someone or something you don't want to be taken advantage of.
A friend of mine loved his Nokia's phones. He always bought Nokia for 10 years during his teenage years because they were very good phones. He had good memories of those times.
He wished he could buy Nokia again, get super enthusiastic with the videos and now he discovers that he has been fooled. F*ck them!!
Because this is HN, which is heavily anti-MS and where people cling to their iPhones and Android devices and love to hate on the platforms they don't use.
Or else why would the actual announcement articles get only around 30-40 points(which were later flagged off the front page anyway!) but this one is already close to 200 points. Winsupersite.com is hell banned on HN from even being submitted because of the haters flagging articles to death. Go figure.