I had another quick look at this in my test environment, and I found that if you alter the CSS a bit (leaving fof/gamification installed), it works as intended
.Evergreen--show {
clear: both;
}
Essentially, you just add clear: both;
The only issue I see remaining after this is that the drafts keep incrementing and are not deleted automatically, so that's an outstanding isuse.
Note, that I have a lot of custom CSS on my forum, but if you find that you can't click any of the reply links to show the replies themselves, then the above CSS change may help.