Increase discoverability and browsability:

The discover page should feature a section with a continuous, hashtag filterable, clips section. In an internet browser ala Firefox there should be a possibility to hover to follow and/or like a clip without leaving the page and the possibility to click through to a user's page. The algorithm should focus on a mixture of fresh content, and popular content, and ideally "learn" from the users actions.

On the mobile app this should be the FIRST and only feature on the front page, with the hamburger menu or swipe action available for changing focus.

This would dramatically increase the time and focus a user spent on the platform, increase the discoverability and browsability of content creators. Ultimately this would be a great way to "hook" a user on to twitch content, rather than having then migrate to another platform (like f.ex. YouTube) if they don't immediately find a creator they follow or find interesting who is live, and importantly retain users on the platform after a stream ends.

Hopefully, you all agree with my suggestion and are already hard at work implementing this, or a similar feature. :)