Just came across this -
From: P. Taine <user@domaine.invalid>
Newsgroups: rec.arts.sf.written
Subject: Re: xkcd: x - IMG_1412.jpg (0/1)
Date: Sun, 24 May 2020 17:00:02 -0400
Message-ID: <m1olcftup22iokvetlh9sk6iltcqadfi3s@4ax.com>
Usenapp thinks it's a binary, perhaps via the title's .jpg (0/1)? It's not, but Usenapp won't display it as raw text either, just shows the "pick a binary" panel instead, which then complains that it's not a valid file. Yep!
A "just show me the raw post" button would be welcome, alongside the Header button probably.