True VOD editor
Every streamer runs into a few issues with trolls. Half of the time with trolls or DMCA content, users have to completely delete VODs. Well, unlike Twitch but on other platforms you're able to edit "VODs" a lot more with a lot more detail. That included to making parts quiet, to louder. Replacing or adding music to the vod, or even bluring or blocking unsafe content for the vod and even removing DMCA content from the vod without removing your whole vod to follow through with DMCA.
These systems have been around for ages and I'm completely flabbergasted about twitch's speed at handling for these situations. We have other platforms out performing Twitch in a lot of these design choices in which they protect the content creator a lot more.
I saw a similar suggestion about vod editor but it said a "highlight editor" was in progress. Who cares about highlights when you can't highlight because you're forced to delete a VOD asap for guidelines.