Nested replies: root post is too narrow on mobile

Small bit of look-and-feel feedback, mobile only - on desktop the width is fine. On mobile the opening post ends up in a narrow column because the avatar is on its left, just like the replies. Reddit keeps the first post full-width and only indents the comments (screenshots attached for comparison). For long opening posts - guides or articles especially - the narrow version is a lot harder to read. Would it be possible to keep the OP full-width on mobile and apply the threaded avatar layout only to the replies?

True, we should move the author stuff to be above instead of on the side, as we do on flat topics