The reduction in stake was a long-term agreement between the two. Yahoo has no choice but to sell. Keeping in mind the hotness of $BABA, they've re-negotiated the deal and now have permission to sell only ~140M shares at IPO, instead of the earlier agreed-upon ~230M.
What's the point of having a 3rd rate photo sharing service if you don't have 3rd rate analytics to go with it, and who wants growth when the rest of the company is dying?
