I think at the point where you're loudly complaining about the email patch process (and hey, I agree it's the worst), this has stopped being about Rust.
May I ask which aspect of the email patch process you're referring to?
Arguably, I've used it only once to contribute a kernel bugfix, and I was lucky enough that my patch got accepted as is. So I found the process pretty straightforward.
But even with iterations and revisions factored in, kernel work itself feels orders of magnitude more complex and cumbersome to me than a patch process based on a mailing list could ever be?
