Editors spend a lot of time making decisions related to hyphens. That’s because hyphenation depends not only on accepted usage but also on context—and sometimes on both.
Editors are trained not only to look for errors but also to account for contextual nuances and stylistic preferences. We impose consistency and clarify ambiguous prose, and we know when and where to look things up. To make sure we haven’t missed anything, we make use of spelling and grammar checkers.