Kind of like how you can do [in-line links](to link people to a website), allow the user to use the same syntax to create contextual information that appears when the [user mouses over](Similar to alt-text on an image). This way users who know the context won’t have to slog through a tedious wall of text while those who don’t can optionally bring themselves up to speed. For clarity sake in-line context will be a different color to a link, and those on mobile (or desktop) can click it to expand out the contained text as if it was part of the original comment.
EDIT: it might be a good idea to potentially use different syntax so that you can link websites within in-line context.
This is definitely a cool but very niche feature that I and nerds like me would use, but the vast majority of normal* folk never would. So for that reason it’s probably not going to be any kind of priority to add. But hey, in the meantime, we’ve always got footnotes!
* “normal” by Lemming standards, anyway
I find footnotes are extremely clumsy and break the pacing of the sentence. For example, I read your footnote first, and didn’t get the context.
Sounds like something the collapsible spoiler can do.
The problem with that is that you can’t
have spoilers within the line itself
As each spoiler requires a line break
and it just looks awful, both in the markdown, and especially when rendered as a comment.
Compare the almost seamless implementation in my example to the raw output of this comment.