> The important context here is that neither grsecurity nor PaX developers were involved in that mailing list discussion. The PaX Team's comment to the LWN article clears this up. We've never submitted the patches for mainline inclusion.
https://unix.stackexchange.com/questions/59020/why-are-the-g...
That is pretty much what Spengler says in the Stack Overflow question where this was asked directly.
Link for the lazy: https://unix.stackexchange.com/questions/59020/why-are-the-g...
Maybe they're just thinking "our customers value our work, so let's focus on providing value to them instead of to people who don't value our work". Whether or not that's true, I don't blame them.