When adding a new entity to the system, the ability to log a revision message makes very little sense, and in some cases, e.g. media, the visual prominence is overwhelming and takes attention away from the task at hand.
Proposal from @rlnorthcutt: Let's only show this on content/media/etc. edit instead.
Before / After
Nodes
Before
After
Custom Blocks
Before
After
Media entities
Before
After
