Not sure if apparent Forum bugs should be here or under Bug Reports, so feel free to move.
When I reply directly to someone’s post without quoting them, sometimes the resulting reply post shows the icon of the user I am replying to at upper right of the post, and other (most?) times it does not.
Hard to provide definitive examples of where the icon is missing (absence of evidence and all that…), but I think this and this are ones where it did not show up even though I replied directly to someone’s post. And this is one where it did show up.
Would help with flow of discussions if this context was always shown.