Feature allowing streamers to check for song DMCA before they use song on stream
I recommend adding a feature that allows a streamer to submit a link to a song/upload a song, and has the Twitch system check if that song is considered DMCA. If the song is not DMCA, then streamers can go ahead and use it. They won't be anxious about "testing" it on stream and potentially getting a strike. If not, then they won't use it.
Not every song is particularly clear cut based on research alone- there's a lot of haziness and this way we can all alleviate some anxiety about this together. Twitch worries less about going through VODs to mute, streamers worry less about unexpected strikes.