Additionally, the article cites Yahoo!'s threatened display-ad model. Aside from the intangibles of grabbing all of the users of a property that is not only large, but young, vital, and growing, -Tumblr creates content. Yahoo! Places ads on content. Tumbler made sense on a few different levels at least.

If it wasn't a unanimous board approval, it's no surprise the losers of the vote would be kvetching to the press about it.

You don't get rich by writing a lot of checks. Also, a hedgie-third of the board just skipped town, so there's three guesses as to who the "one source" is.

You do get rich if playing the long-game well ... which sometimes requires writing cheques.

Is Third Point known to have been going long with their Yahoo! shares?

I don't know