Right now Twitch's interface makes uploaded videos almost invisible. In order to find uploaded videos, you either have to find them at the bottom of the search results or, when in a specific game, you need to go to a separate "uploaded" videos tab.

While I do not want to suggest specifically stealing from Youtube, I think an interface redesign needs to be considered to make uploaded videos more visible. I think that the focus should be on what's live, but that there should still be quite a bit of visibility added to the uploaded videos in both search results and games listing. Whether that's an integrated pool showing both or perhaps making a single unified page giving listings of live content as well as uploaded content, improvements are needed here.

Right now, the only ways of notifying your followers of an upload are through e-mail and channel feed. Not everyone wants to spam their followers e-mails (potentially causing them to drift away) and not everybody uses channel feed. There should be a proper dashboard that displays all the videos that have been recently uploaded from the broadcasters you follow, and only uploads. Currently, if you go to a channels videos, you have to specifically filter for "uploads," otherwise they're lost in the sea of 100's of VOD's and highlights. In this dashboard, there should also be discovery mechanisms. IE: Popular videos from recently watched games, recommended videos, popular videos from certain categories, etc... It's too out of the way and convoluted to properly upload videos while expecting them to get views.

With Uploads, streamers can keep their VOD archive forever. It is finally possible to see a record of every game an individual streamer has played in their career by reviewing their Uploads page. It would be cool to add a "Games Browser" for each channel that mirrors the existing site-wide Games Browser. You would get a searchable view of all of the games represented in a channel's Uploads sorted by total # Views for each game. Streamers could use this to link to archives for specific games they've played on Twitch the way we can currently link to specific games browser pages. For example:

twitch.tv/streamer_name/directory/games/Dead%20Space%20

Would link to all videos marked as "Dead Space" uploaded by streamer_name.

This would be a great way to quickly see what sort of games a new streamer you discover tends to play, and uses existing public-facing information.

Allow users that Share Clips from streams on Social Media to Earn bits.This will entice others to use the clips feature, as well as creative more of a flood of "Twitch is a thing" advertising that we are lacking. Cheering is an amazing interactive feature that so many people participate in, lets give more people more ways to earn bits.
-This would be a way to earn bits that is beneficial to the platform and streamers (not just Our Advertising Partners)
-Would create a community participation effect. Someone can help the streamer in a way that is free to do but earns them a reward.
-Would be able to earn 1 bit to share on twitter, 1 on Facebook, Reddit, etc.
-you would be able to do this in any channel, you could be supportive of whomever you want.
-Would have caps for people trying to abuse the system exactly like watching ads for bits.
Clips have insane metrics for new audience capture this could be the more effective advertising way to go about it PogChamp

A feature that allows you to view how many characters are allowed and used while typing up both your description and tags.

As suggested in another idea, tags at the moment are rather restrictive on just how long individual tags can be, but in my experience it seems like there is also a rather low tag limit (i.e., I enter a lot of tags and it seems that the first few will be removed in favor of the last ones that I entered)

Some plugins/addons for sites such as YouTube (vidIQ, TubeBuddy) or Reddit (RES) have similar functions when creating posts.