I’ll try and believe in the guy to not be a troll.
It could just be bad UX from a Lemmy app. In voyager, for example, it isn’t always clear while browsing a feed, that an image post also has text in its body. But the app lets you reply from the feed view. So, you see a screenshot in your feed, tap the image instead of the post, so you just see a bigger screenshot, and there’s no hint in this view, that there might be text in the body. So, you just type up a reply from there.