Image-only posts hard to open
For a post that contains text and images, opening the post to see replies works by clicking anywhere on the text content but not the author or image areas, which will open profile or image view, respectively.
For posts that contain just an image, the click target to open the post is made up of only the tiny amount of whitespace between author and image areas (yellowish area in the following screenshot).
This area is too small as a click target - many times, the user will end up on the profile or image view. On top of that, the area is completely invisible, so many users might not even understand that this is the place they need to tap. It needs to be enlarged, or at least an item to "Open post" should be added to the context menu of each post.
Improvements to the post layout are on our roadmap for this year. Content will be inset on the side giving you plenty of space to tap.