Nodes should provide more useful identification

[dyoder]

Particularly when they fail (opt out) of a test.

Opting out results in me not being able to run Orca tests anymore. A single node opting out causes Orca to bail out of the whole test. When a node starts opting out it appears to continue to opt out i.e. it's not a one time thing, it's broken from then on.

When a node opts out I should easily be able to identify which node has opted out so I can look at the logs, try to fix it, or at least shut down the server so it doesn't keep causing Orca to bail out of tests