That isn't the point of the parent. Anything that is not better than the current kernels is a waste of time.
I am sure someone will chime in that the Hurd is a microkernel. Microkernels have been around for decades, and did not gain much traction. (Perhaps with the notable exception of Darwin, but this is a single-server kernel.)
Something like Singularity/Midori is actually interesting, since it provides memory protection in the kernel, but without the expensive context switches.
Edit: yes, deleting messages is going to improve the flow of conversation :p.
