This is not done to annoy our Silver members—limited time exclusive access to content is just one of the many benefits of having a Gold Xbox Live account.
I didn't see this coming. Really, xbox live gold seems like a resonable value for some but when you take away something from the free service to "add" a bullet point to your paid service it just reeks of shadiness. Seems like there are all sorts of ways they can add to the gold service without making the free alternative worse.
Demon's Souls Official Thread | Currently playing: Left 4 Dead 2, LittleBigPlanet 2, Magicka