One-click accounts would be great. If people can at least comment they can get to know the platform a little and then may get into it.
The welcome page thing is important too. New users won't know what things they should be doing. I like the idea of help 'bubbles' popping up when you start out. There will be features they do not even think of. Of course there should be the option to dismiss them as we do not want 'annoying Clippy' to bug people. Maybe get the community to make some tutorial articles and videos that are easily discoverable. We have people with those talents.
There's always improvements to be made. Consolidating notifications would be good. I don't need four if someone votes, comments, mentions and shares a post or several if they edit a comment.
Keep up the good work.
We are leaning towards a checklist... then maybe a badge to indicate you've completed. Then maybe an intermediate list as well.
People like badges. Getting a set for specific achievements would be good. Of course we have @hivebuzz doing this already, but guidance on what to try next would help.
Badges are based on a decentralized list of users that any platform can use and on PeakD they have tons more utility by have a page, a user list and a feed of posts from the badge holders. Also they don't spam and people can follow badges if they want. They're also searchable.