- You can choose now between private and public type of account (check settings page or Friends/Followers page's sidebar).
- Private type of account lets you control your followers list
- You can switch between private/public account with no limitation at any time
- You can now post to followers only (see main posting form)
These changes are still fresh, some glitches might happen. If they do please report.
The app will catch up shortly.
FYI, improvements for blocking feature are next to happen, hopefully this week.