Thanks for your feedback. We are including some of this in our next version. So stay tuned!
[1] https://itunes.apple.com/us/app/minihack-for-hacker-news-sim...
In the next version (1.1) coming in about a week we will include:
-Clear upvotes and comments number from the main feed -Quick access to comments from the main feed -Quick upvoting for posts from the main feed -Switch to auto-delete posts viewed and only show them in the "Viewed" tab -Collapse comments -LogIn improvements -Commenting and posting bug corrected -Follow users to receive push notifications when they post something