I was actually thinking at some point if TBX could allow directly writing on the notes in the map view. When I am doing an intensive review of a research article, I also find the blank canvas in Scapple more comfortable to drop notes. But, Scapple is terrible at exporting notes. They all get screwed when exported to other formats. Tinderbox, the outline view gives the notes structure.
Thinking about why the map in the Scapple seems more comfortable for dropping notes and viewing them all in one canvas, I realized, the difference lies just on how the $Text is inserted in TBX. If, for example, direct writing of the $Text on the map just like the $Title of the note would be possible, anything we use Scapple for can be replicated in Tinderbox.
So, Mark, this will be a feature request if you are reading this. A direct inserting of the $TEXT in the map: just like the Title.
One might even have the option to leave $Title unfilled to the point he/she doesn't want further powers of TB (like agents) which make use of the $Title attribute.
Since we already have Quick Links (one of the most interesting features in TBX 7), this will be a development in the same direction. Call these notes Quick Notes. Quick notes will give us the simplest and fastest way of writing notes in TB. This will be a great a merit specially for beginner TBXers who don't (cannot) make use of the horse powers behind TBX. The same would be for advanced mappers like gkorgeski who still want a bare bone map like Scapple.