There are already suggestions about usernames on this website. It's better to upvote existing topics instead of creating new ones :

https://twitch.uservoice.com/forums/310228-account-management-e-g-login-connections-pass?category_id=368062

Please b9921, try to calm down. Indeed I told you that you could upvote this topic, but this isn't the only thing I said. I truly believe that a big company like Twitch must have a better support team, who should actually help their customer. I have my own issues with their support team, so I can definitely understand your frustration. However, insulting them won't solve anything, as they always ignore or close hateful topics.

I agree with you. This 6 month cooldown is way too long. Moreover, there is currently no warranty these name would actually be recycled after this delay.

This cooldown definitely need to be reduced. 6 month to get an old name back is way too long, mostly when you regretted your change. Moreover, these cooldown only indicate the minimum time. Some people never got their name back. This policy needs to change.