This would especially benefit streamers with many viewers, if they actually intend to interact more with their viewers. The more viewers they have, the less likely it is that a viewer's question gets replied to.

My suggestion:

1. Viewers can submit questions by using a chat command, e.g: "!q What's your favourite food?"

2. Questions are automatically shown in the streamer's dashboard. Create a new area for this. Alternatively create a new layer inside the chat box and show the questions there.

3. Viewers can also see accumulated questions (inside chat box), so they don't submit the same questions multiple times. They can like/upvote certain questions to emphasize interest in them.

4. In between games or during breaks streamer can start answering accumulated questions. After answering a question, streamer can check it off the list and the question disappears from the list.

Bonus feature:

For every question shown in the streamer's dashboard/chat box, there are two buttons, "Start of reply" and "End of reply".

Streamer clicks on "Start of reply", answers the question and then clicks on "End of reply". A Clip of this reply gets automatically created and moved over to the Clips section with the question becoming the title of the clip. No streamer or viewer interaction is needed for this.

With this feature streamers can easily create a video FAQ inside the VODs section. Maybe create a separate FAQ category for this inside the VODs section.