I’m curious how hard it would be to make a Twitch extension that provides subtitles in different languages, or whether it’s possible to use Twitch’s integrated Closed Captioning for this.
It seems like it wouldn’t be too hard to implement and would have a lot of benefits. You wouldn’t need to stream on different channels for different languages, everything could be available on the main channel, with the option to add even more languages later. It would also be possible to disable subtitles for those who don’t need them and make it easier to clip funny moments. However, in that case, VODs and clips would be without subtitles entirely, which could be a drawback.
This idea seems pretty obvious to me, so I’m curious what the downsides are, because I don’t really see any. The only issue I can think of is that it would probably work poorly in the Twitch app, where extensions aren’t shown directly on the player but are instead placed in the chat menu.

I don't see how subtitles would change anything

