Since manually saving drafts via shortcut keys was removed, I think it's appropriate to request a manual save button or other option now.
There really should be some option to force the save. I really don't want to have to wait until it decides to autosave my draft if I must close the browser now or otherwise navigate away from the page.
From my comments below:
The use case I'm talking about is when I'm trying to write a long and detailed answer to a question. Usually right when I finish, I want to refresh the page so I can account for any updates to the question or existing answers. That means refreshing the page and without being able to save immediately, I would have to wait for it. To work around this, I finish, copy my answer, refresh, and paste again. If I didn't wait long enough or forgot, I potentially lost part of my answer and might have trouble filling what's missing.
Also, in some circumstances, I will add a significant amount of text well within the autosave period (I'm a pretty fast typist) well after it has [first] saved. The counter starts again the moment I start typing. Doing the above will loose all of that and is a pain to recreate, particularly when the first version is explaining a difficult subject or was worded perfectly [as I intended]. If there's a save feature, let us use it. Only I know when it's appropriate to save, not the system.