Script(s) here https://github.com/hi5/qvd
As I would like to see the (multi-line) file comments from a descript.ion file in a "QuickView" like manner[1] I created this as a proof of concept.
There are two scripts, one to use with TC as a 'fake' viewer and a standalone viewer.
I would like to see it as an actual plugin of course as this does would simply work better overall, but until then this will have to do

QVD
QVD: 'Faux' Total Commander Lister 'plugin' to view file comments stored in descript.ion files.
(mimicking QuickView by overlaying edit control on the target panel)
It can be used in combination with QuickView: when QuickView is activated, the bottom half the panel is reserved for QVD.
This can can be disabled (setting QuickViewOff)
Caveat: invoke QVD before invoking TC's QuickView, otherwise it won't be able to set the view to half the height of the panel.
The QVD window isn't docked to TC so it doesn't move together with TCs Window.
To start:
Setup a button, start menu or usercmd entry (allows you to assign a shortcut) in TC to start the script while TC is running.
Alternatively setup a #IfWinActive AutoHotkey hotkey to start QVD.
Screenshots
Multiline file comment: https://github.com/hi5/_resources/blob/master/qvdmultilline.png
Multiline file comment with QuickView: https://github.com/hi5/_resources/blob/master/qvdmultilline_qv.png
DV
DV: A standalone Descript.ion files viewer using two panels (file list (left), file comment (right)).
Start script and Drag & Drop a folder on the GUI, or start with a folder as argument.
Screenshot
descript.ion Viewer (standalone): https://github.com/hi5/_resources/blob/master/description_viewer.png
[1] As suggested here:
Any way to display comments at passive pane (QuickView mode?)