I am a huge fan of self-serve options as well as it's so much more convenient than having to spend the time to reach out and speak with someone.
Currently, if you wanted to remove the channel from your subscriptions you'd need to reach out to us to have that processed for you. I am hoping this will change in the near future. Luckily, we have numerous channels for you to reach out to us, all of which can be found by visiting the Contact Us page on our website.
Feel free to send a Private Message to @CommunityHelps and we can remove the channel for you as well. If you are not familiar with our private messaging system please check out our Blog.