Mormons, why no new revelations or prophecies?

[OpenHeartSearchery]

It seems that when Joseph Smith died, the Doctrine and Covenants basically stopped growing. There have been a couple of official declarations...but the 1830's saw hundreds of revelations and prophecies. Then...nothing.

Why haven't subsequent prophets continued to give revelations and prophecies that have been added to the Standard Works?

[phrog]

there have been some....but it would seem evident that a "restoration" builds on existing knowledge. we just need to learn to live it now.