Broadcast Forward
It would be wonderful if I could set up a broadcast group on convertkit, and that convertkit would generate a specific email address (for example my-awesome-group-xyz@convertkit.com) that would only receive emails from an assigned email address. When I send an email to that generated address from my assigned address, it would immediately broadcast it to my my broadcast group. This would require no log-in, no duplication of broadcasts, no edits to broadcast, no scheduling, etc.
Is this too crazy of an idea? Too unsafe? I don't know. But I would use it.