Unfortunately we haven't built a clever way to sign up for updates! I'll think of the best way to do this (eventually we'll push updates directly in the product).
Working on adding the copilot opt-out as we speak!
I love the ideas here and I would like to discuss some of these with you. If it's OK with you, I am going email/DM you!
In general, we would love to engage in conversations with folks (feedback@haystackeditor.com)