It might be useful to split "edit" into "move" and "edit", and maybe have a different consideration page for the edits or create a preference setting to show edit considerations or not. This would reduce Nodes to Consider to those that are actionable, which might increase interest -- i.e. less clutter and one's vote matters more. This assumes that e.g. move votes are automated in some way (maybe require 5 votes). That is, that a successful consideration is always carried out.
For actual edits, you could open it up to more monks. Though to prevent abuse, there would have to be a review process, e.g. randomly pick a few edited nodes, show the before and after, and let monks vote on whether the edits were good or not.
Unfortunately, Consideration is in some ways broken just because of the disincentives (slow site, successful edit considerations are not always acted upon) and I am not sure how much can realistically be done about that. :(
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