Editing vs Critiquing

Editor Jessica Faust at BookEnds Literary Agency blogged a few years ago on “How I Edit,” ending with these words:

As far as I’m concerned you can run with my suggestions or you can ignore them altogether and go off in your own way. I don’t care how you want to fix the problems I see, I just care that when I read it the next time those problems/my concerns are gone.

This inspired some thoughts on the differences between critiquing and editing. Both involve handing your precious manuscript, the...