Yes! This would be absolutely amazing. I find myself resorting to comment fields just because it is so easy and fast add updates. But it lacks some functionality that I would get from doing it the “correct way” (Sorting by more recent comment, filtering entities which haven’t been commented on for over 2 weeks, etc)
Specifically referring to the thread view within an entity, not the stand alone thread view. This could be game changing in terms of user input. Potentially even allowing you to set other fields for your comments.