[tor-relays] A general question for relay operators

[I]

I wish I'd known that this is not the place to learn Linux or really how to run a node securely and efficiently.
Perhaps an acknowledgement of that might bring some other pages or styles of the current pages.
I'd like to see a collection of correct answers perhaps searchable but restricted and monitored. 

There are some brilliant people who help but there are others who say less useful things and there's nothing stopping them.

Has anyone wondered why the number of nodes is so incredibly low?

Rob