Clicking Yes does not change anything, only way I found to get rid of these drafts is open it, empty out all text and press cancel which produce eventually an popup warning (not every time). After that the draft is gone.
Working as intended?
>No, I mean nothing like just nothing.
I have no problems deleting a draft that I wasn't currently editing. I just click on the big X and confirm. Then reload.
And when I need the draft, I can clearly see the load or discard message.
The new forum format still works the same. After you click on the [X] and confirm, you must refresh the page before it disappears.
I don't have any drafts currently (somehow they got deleted in one of the last maintenances) and to be honest I resign in the meantime a little bit ...
I switched to a RSS reader to follow that part that I'm interessted in and visit only for answering which is a real shame but it is a lot easier.