The reason that YHOO is trading at 15.90 before market opens is that some investors are selling for the news. They are excited with 50 cents profit. In a few hours this will fade away. I am also on my words that APPL will take over YHOO.
I think you are right. A lot of people are probably frustrated because he's pissing away their fortunes. The Board said YHOO is too big for anyone to takeout. So some form of it (probably the US business) will remain public. Yet this bozo is trying to prevent the bidders of the various assets from talking with eachother so that can find the synergies among themselves.