There is already a way to do multiple votes on a single node.
in reply to Double-Plus Good
Since it was not intended, I won't detail the method here,
and have only
done it myself once to prove the point.
Update: I have just checked and the "hole" has been plugged so that
particular method doesn't work any more.
Meanwhile, I am in 2 minds - one says "/msg or email the owner, that is
better than XP", the other that it is nice to pick out occasional nodes
that are very good.
I suspect in practice that the usual suspects will generate the good
nodes. In practice I check their home nodes occasionally and
browse their postings as a way of finding the perls (sic) of wisdom.