Good evening everyone!
I think it would be a neat feature for users to earn a chat badge for a specific amount of the time that they have been on Twitch to show off in the Twitch chat.
In my opinion, a 5 year badge would be appropriate for this feature (i.e. If I created my account in 2011, I would earn a badge in 2016).
This would also be a great way of saying thank you to those who have been using the website for a while and motivate those to remain on Twitch.
Users should also be able to enable/disable the badge in their settings if they don’t want to display it in chat. (i.e. just like Twitch Turbos)
Let me know what you guys think! 
- Walter