I'd like to propose a channel dedicated to questions about how to design systems, wiring them up and best practices. One of the most difficult things I've struggled with is gaining expertise about the "proper" (or at least not obviously wrong) way to do things. This might be difficult to moderate, because it involves a higher level of abstraction discussing use of all unreal's systems together, but I feel it would bridge a gap in knowledge here, and help nearly everyone.
I don't feel there's an existing channel that's appropriate, or comfortable to discuss these sorts of things. The more involved topics tend to get drowned out, especially in bp, or cpp, or general. My 2cents.
PS. This discord server is amazing, thank you to everyone.