The first experience for new users to the English Wikipedia
I think it might work better by adding a "Save in My Workspace" button (along with Save and Preview). When I sit down, I always think I am going to do whatever I have come to do in one sitting. But the reality is interruptions (if you want to know why so few Wikipedians are women, think interruptions!). So better to defer the decision until the point of standing up and walking away.
Actually, if the Preview button saved the article in the user's workspace as a side-effect, then that would kill two birds with one stone:
- the "interruption" scenario
- the "forgot I did a Preview not a Save and now I've lost my edits" scenario
Of course, increased use of the user workspace increases the risk of edit conflicts.