edit #2: here's what the editor looks like in SBS mode when using SOX
Done and done. Thanks @ᔕᖺᘎᕊ
edit: My point here is that when editing code there is a lot of unused screen real-estate. I don't understand why people wouldn't want to improve the editing experience on SO. It can be better and it should be better. It's frustrating that people don't want to improve it.
Editing large code blocks on SO is not good, 40% of that screen real-estate is just the similar questions block:
vs. reddit's full page editor:
So the question is: can we make editing code on SO as easy as it is on Reddit? Has this been discussed? Why don't we have nice things too?