The title pretty much explains the suggestion. I have two reasons why:
- Consistency: When posting a new thread, the "Create thread" button is directly below the editor, and the "upload" button is below that. I think the editor should match, to make for a consistent layout.
- Efficiency: I, out of habit, have an expectation of being able to (after editing my message) press TAB then ENTER to submit/save my changes. Currently, that doesn't work since the first button is the "upload" button.