I just spent the time going through the comments to confirm that there has been no response to this, by developers, or any other member of the company.

It's been 2 years 4 months since this was proposed, and is the single highest-voted issue on this feedback forum, with over 50% more votes than the second most-wanted suggestion.

Clearly this feedback platform is just a waste of time if no-one at Twitch is even going to give a simple "not at this time"/"it's in development" to the issue with the most support. Seriously, just shut this down if you are just going to ignore it anyway.