The first proposition is indeed a priority, with more a less 800 new accounts created every day, it will appear to be very useful and contribute maybe to improve retention.
The upvote button can become available only after the first scroll-lock phase has ended. If the article is upvoted then a comment has to follow. Otherwise the user receives only 40% of the potential reward.
That is an interesting idea to explore as it tends to foster discussions.
RE: Last Night I Dreamt About Steemit — 10 Suggestions To Make the Platform Grow