Comment by ZeroConcerns

While interesting, the failure to distinguish between cooperative and unmodified programs here sort-of weakens the comparison.

I mean, the OpenBSD APIs are great and all, but most developers are not going to be aware of these, nor deploying to a platform that supports these in the first place.

And yes, kernel-mode supervisors, when available, suffer from inscrutable configurations, so it's clear a middle ground would be nice (especially one that also applies to the W-environment), but it's not clear anyone is particularly invested in this?