If I check "Randomize the PID of newly created processes" in new System Hardening menu, it not detected in /etc/sysctl.conf after install
(In reply to surv from comment #0) I have a diff out for review which fixes this https://reviews.freebsd.org/D7440
Fixed in HEAD (r303877) and and 11-STABLE (r304921) a while back. Thanks for the submission!