[dozzie]

> It is very convenient - and sometimes absolutely necessary - to allow people to put their logic into configuration.

It sometimes is somewhat convenient and quite often it's PITA. Indeed there are times when the code is a part of the configuration (Riemann is one such example, my two RPC daemons are another), but those are rare.

And then, most probably the pluggable logic should not be written in the same language as the software was implemented in.