My friend and I are considering finishing a prototype of a Reddit app. We've already agreed to the following features on first release (if we keep going).

• Similar urls to current Reddit website (so you can change the URL to reddit.com and see the same page)
• voting, commenting, posting selftexts and links
• Directly uploading image posts may come later if it looks complicated
• Masstagger integrated.
• Dark theme (other options in later releases)
• Primary use case: desktop and mobile web.
• Performance first. Reddit's 1 minute load time on default mobile, missing/broken features on i.reddit.com/.compact, and a few tiny complaints on the desktop site are the primary reasons we are considering writing this app. Native is not in our collective skillsets or radar, so we're going to go the extra mile to make sure the app respects both your time and your battery where possible. We did do some research and found that Reddit has actually been negligent in this regard on mobile web, meanwhile we have years of experience in the subject.
• Mailbox (send/receive messages, orange icon on new message/comment reply/thread reply).
• No infinite scroll
• View source JSON of comments/posts.

What are some features/ideas that members of this community would really like in a Reddit app?