Board Thread:The Panopticon/@comment-121.45.54.78-20130925110520/@comment-1432718-20191120055445

OK there has got to be a better way of doing this, but after about three hours of searching, I finally found what I was looking for:

Forum:What is a cameo? states that parenthetical statements are not allowed in either infoboxes or lists of appearances (which, when you think of it, are just extensions of infoboxes).

So no, parenthetical discussion is not out in the open or even being considered here.