Hi,
this is not so easy. We have many different installations out there. /usr/local/nagios might be the default for user compiled installations, but there are also different distribution locations. I doubt that everyone likes the system to be scanned for the nagios binary file, there might be more security risks than goodies.
NagiosQL is not aiming the newbies, you definitely need some basic understanding of Nagios and also the ability to read the manual
It hard to find a way between noobs and pro's. It's always... Thanks for the ideas, we will discuss them internally.
Cheers,
Rouven