It certainly seems a good thing to educate node authors (and Friars) on what kind of node errors should be fixed or considered, since our janitors are unpaid and the perks associated with the job seem minimal. I wonder, though, at the effectiveness of leaving nodes un-janitored to avoid re-consideration ... wouldn't it be better to simply display the consideration history for a node so that people could see it had already been considered and un-considered?

Hmmm. Looks like something along these lines (RFC: a nodetype for considerations) has been discussed recently ... did any change to the site come of that discussion?