Then it would defeat the purpose of the acquisition. Perhaps a middle ground? Initially limited involvement, slowly integrate feature/traffic to other yahoo property in a way that doesn't devalue current tumble experience but also gives yahoo a younger crowd as their userbase.

Its obviously very hard thing to do, but I am (probably the only one in HN) rooting for Yahoo. Tired of 2-3 companies dominating the tech world. I am rooting for Marissa Mayer to succeed and give others a run for their money by doing an epic u-turn with yahoo and changing everyone's perception of what yahoo is usually associated with.

It'll have integration with Yahoo's own services but it also presents a few more headaches with pirate links and takedown notices.