The title says everything.
The new "Forums" layout is great, but from a UX point of view, there should be a tooltip with the user's name when you hover on the user's avatar. Have a look at the attached screenshot so you know what I'm talking about.
I believe that you will agree with this. Currently, there's no way to know which user has opened the discussion or which user has replied last. If the user has uploaded an avatar image it is a little bit better, but as you already know, most of the users do not bother to upload a profile image.
This should be implemented for all new "Forums" layouts. I mean it should be implemented for the default "Forums" layout where you see all other categories, and it should be implemented in the layout of a particular category. Basically, it should be implemented everywhere where you have this layout with the users avatar for "Posted by" and "Last Reply".
If you do not want to change the current behavior, then you can easily add this as an option (with "if/else") and then show this option in one of the tabs under "Layout" in the Admin (see the second screenshot).
I don't want to implement this myself because I really do not want to create template overrides (and then monitor them) just for that one improvement.
Thanks in advance!