Spacedust,
Memory limit just enough 64M as I set. This value more then default value of Php (32M). Yes, certain user need more and better his/her customize for their need.
Watchdog always listening port 80. Depend on webserver. If webserver is nginx-proxy, Kloxo-MR will restart nginx, httpd and php-fpm if watchdog think port 80 down/off.
Yes, this approach not perfect. Imagine, nginx running and httdp stop and then watchdog not try restart httpd because they think app on port 80 running well.
Detection will be more difficul if user change port 30080/30443 to another port (say it 8080).
I think better watchdog detect ready on next release (6.5.1).