[pinpeliponni]

Original discussion from over a decade ago was more about clashing opinions, strong personalities, and anti-NSA sentiment (how SELinux ws handled). Grsecurity has always been very opinionated, and technically well implemented. That has never been the issue. In theory they also could have chosen to maintain only one version - in the official kernel.

To clarify some technical aspects, SELinux and grsecurity are not answers to the same problems, and they never meant to be. SELinux was always meant to implement things like multi-level security, bell-lapadula model, and extending 3rd party application with SeLinux roles, and the security daemon. Grsecurity has file oriented rbac system that was more approachable, and a variety of other patches (which are what grsecurity has been more known for - they have been always very excellent).

Knowing Spender, he was probably actually paid to stop. That's my guess. Not going to iterate on that.