Part of it is that this is HN, and Yahoo as an internet company has been boring for a long, long time[1].

Another part of it is that it shows the incredible value of inertia. Sports scores and email is with $5B.

And I think a third is just a bit of schadenfreude from the internet insider set. Selling half of yourself to a Baby Bell-revenant and turning the rest into a tracking stock is a sad way for the first internet directory to die.

[1] The last vaguely interesting thing I can remember was Yahoo Pipes.