I think OP missed one important point. Tumblr acquisition is like a Cinderella story: young high-school drop-out builds a billion dollar company. It is so American Dream! That's something average person would rather hear instead of "one bigco is merging with another bigco". Actavis news are for CNBC, not for general population.
But here at HN we should be better informed about other businesses and technologies than just Cinderella stories. Yahoo Tumblr deal news were on HN front page probably in 5 separate stories.
businesses and technologies than just Cinderella stories.
Wishful thinking. I see far more political stories than enterprise M&A on here. In fact, I very rarely see M&A on here. For example, Workday's IPO should have been on the frontpage. Hint - It wasn't and you've probably never heard of Workday.