"Silent" Subscribing
One of my viewers made a suggestion offline about being able to subscribe to a channel in a "silent" manner. Specifically, they mentioned people with varying kinds of anxiety that would get in the way of someone subscribing if there was a chance they could be "called out" by the streamer for subscribing.
I thought this was an important thing, as having training in mental health I know how beneficial even twitch social interaction is for someone with such conditions, and also it would allow someone to be able to be more supportive of their favorite streamers.
So, maybe a "I have social anxiety, don't announce my subs live on stream" option? And let us streamers see a status mark on our subscriber information page that lets us know the person doesn't want to be called out?
I suspect this will increase subs from some members of the community.