Yes, one could just release the ONE zip for the latest version and include the text: works with 3.6-4.0; that's what I do. And I discontinue the old thread.
I am not going to re-release the same thing 5 times, that's just stupid and useless.
A compatibility list will indeed be a fair attempt to narrow these release down.
That said, I rather see addons being released INSIDE the release and appear as new post below the first post as special addon post. This way a post could list the translations, another post the addons .. Without having to jump through hoops.