Joe Conway pointed out to me recently that people have been taking
heed of some pretty ancient documentation in the Slony doc tree that
indicates "initial node ID MUST be 1".

This was true, in a very precise context, back in the 1.2 version and
earlier.   It misses the extra caveat that "it MUST be 1, because we
are simplifying configuration by omitting EVENT NODE everywhere that
we can, and *that* would require having a node with ID 1 that, by
default, gets events first."

In version 2, we changed slonik to require event nodes in pretty well
all cases, so that "MUST" is now pretty well untrue.

I took a peek back at the documentation that said that, and am finding
that it would require a pretty broad rewrite in order to validate that
it is anywhere near accurate.  I think we have more recent and better
material, so I'll drop this old doc out.