This task is about converging on a single source editing mode to reduce the resources required to ensure volunteers can use `Discussiontools` in all the ways they expect.
//Note: work on this task depends on us verifying that no blocking issues surface in "Step 1." and "Step 2."//
=== Background
T275950 introduced a new mode within `Discussiontools`.
Introducing this "mode" has meant volunteers gained access tools for pinging, linking, and formatting text within `Discussiontools` `source` editing interfaces.
It has also meant there are now three `Discussiontools` modes: 1) `Visual` 2) `Source` and 3) `Source mode with tools`.
There being "three modes" is notable in this context for it increases the resources required to ensure volunteers can use `Discussiontools` in all the ways they expect.