Comment by xorcist

Email is just the protocol. What you're really saying is that http-based protocols make more powerful tools possible.

It's not really enough to state your case. You have to do the work.

On the surface, the kernel developers are productive enough. Feel free to do shadow work for a maintainer and keep your patch stack in Gitlab. It it can be shown the be more effective, lots of maintainers are going to be interested. It's not like they all work the same way!

They just have a least common denominator which is store-and-forward patch transport in standard git email format.